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 References of "E-prints/Working papers"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 901 to 1000 of 1601     5 6 7 8 9 10 11 12 13 14 15     Adventskalender, Tag 11: Gedanken und Wünsche für Hochbegabte.Baudson, Tanja Gabriele E-print/Working paper (2016)Detailed reference viewed: 33 (0 UL) Adventskalender, Tag 6: Gedanken und Wünsche für Hochbegabte.Baudson, Tanja Gabriele E-print/Working paper (2016)Detailed reference viewed: 36 (0 UL) Adventskalender, Tag 17: Gedanken und Wünsche für Hochbegabte.Baudson, Tanja Gabriele E-print/Working paper (2016)Detailed reference viewed: 46 (0 UL) Adventskalender, Tag 9: Gedanken und Wünsche für Hochbegabte.Baudson, Tanja Gabriele E-print/Working paper (2016)Detailed reference viewed: 39 (0 UL) PRESS FREEDOM AND JUMPS IN STOCK PRICESAbed Masror Khah, Sara ; Lehnert, Thorsten E-print/Working paper (2016)Press freedom varies substantially across countries. In a free environment, any news becomes immediately public knowledge through mediums including various electronic media and published materials ... [more ▼]Press freedom varies substantially across countries. In a free environment, any news becomes immediately public knowledge through mediums including various electronic media and published materials. However, in an unfree environment, (economic) agents would have more discretionary power to disclose good news immediately, while hiding bad news or releasing bad news slowly. We argue that this discretion is affecting stock prices and stock markets in countries with a free press should be better processors of economic information. Using an equilibrium asset-pricing model in an economy under jump diffusion, we decompose the moments of the returns of international stock markets into a diffusive risk and jump risk part. Using stock market data for a balanced panel of 50 countries, our results suggest that in countries with a free press, the better processing of bad news leads to more frequent negative jumps in stock prices. As a result, stock markets in those countries are characterized by higher volatility, driven by the higher jump risk, and more negative return asymmetry. Results are robust to the inclusion of various controls for governance and other country- or market-specific characteristics. We interpret this as good stock market characteristics, because a free press improves welfare and increases economic growth. [less ▲]Detailed reference viewed: 672 (82 UL) "Erwachsene" als relationale-Personen-in-Skalierungsarbeit-an-Orten-in-der-ZeitHaas, Claude ; Marthaler, Thomas E-print/Working paper (2016)Detailed reference viewed: 109 (8 UL) Elemente eines relationalen Konzepts des betreuten Wohnens von jungen Erwachsenen "im Übergang in die Autonomie"Marthaler, Thomas ; Haas, Claude E-print/Working paper (2016)Detailed reference viewed: 77 (4 UL) Elemente eines relationalen und skalierungssensiblen Konzepts für Ausstellungen und andere "Arrangements" am Beispiel eines Museums für WohlfahrtsgeschichteMarthaler, Thomas ; Haas, Claude E-print/Working paper (2016)Detailed reference viewed: 92 (4 UL) Wissenschaftliches Schreiben als relationale und sklaierungssensible Erfindung von WirklichkeitenMarthaler, Thomas ; Haas, Claude E-print/Working paper (2016)Detailed reference viewed: 89 (6 UL) Gemeinwesenarbeit als relationale skalierungssensible ÖrtlichkeitsarbeitUhler, Nicolas; Haas, Claude ; Marthaler, Thomas E-print/Working paper (2016)Detailed reference viewed: 198 (10 UL) The Colorized Dead. Computerunterstützte Analysen der Farblichkeit von Filmen in den Digital Humanities am Beispiel von Zombiefilmen.Pause, Johannes ; Walkowski, Niels-Oliver E-print/Working paper (2016)Detailed reference viewed: 59 (2 UL) Frontaliers atypiques dans la Grande-Région SaarLorLuxWille, Christian ; Helfer, Malte ; Caruso, Geoffrey et alE-print/Working paper (2016)The Greater Region is characterised by the singular independence of its labour market between its different sectors. Cross-border commuting across national borders has been facilitated in a tangible way ... [more ▼]The Greater Region is characterised by the singular independence of its labour market between its different sectors. Cross-border commuting across national borders has been facilitated in a tangible way by the process of European unification, as a result of which the status of cross-border commuters has been defined from the point of view of social and fiscal rights. This definition does not distinguish between border workers who migrate from their "home region" to the neighbouring country and those who come from the neighbouring country to the "home region" to join their place of work. The last-mentioned atypical border phenomenon is becoming increasingly important in the Greater Region. It is therefore in the context of residential mobility and atypical mobility of cross-border employees that the motivations of the latter as well as questions relating to the spatial organisation of daily practices are analysed in the context of the change of domicile. Aspects of social life at the place of residence will also be investigated and the subjective evaluation of residential migration will be detailed. The evaluation of each of these elements is based on the comparative study of atypical commuting at the border between Luxembourg and Lorraine/Saarland. [less ▲]Detailed reference viewed: 46 (0 UL) Les Parcs naturels dans la Grande Région SaarLorLuxDeshaies, Michel; Caruso, Geoffrey ; Helfer, Malte et alE-print/Working paper (2016)The nature parks are essentially rural areas, relatively extensive, whose landscapes, shaped mainly by traditional agricultural activities, have characteristics and aesthetic qualities favourable to the ... [more ▼]The nature parks are essentially rural areas, relatively extensive, whose landscapes, shaped mainly by traditional agricultural activities, have characteristics and aesthetic qualities favourable to the reception and development of leisure activities and green tourism. Relatively far from the major urban areas, the landscapes have undergone little transformation under the influence of suburbanisation. The nature parks were set up at different times, within an institutional framework and with objectives that differed significantly depending on the legislation in force in the four countries; the emphasis was initially placed on nature protection, but from the 1990s onwards, sustainable local development became increasingly important. [less ▲]Detailed reference viewed: 32 (0 UL) Possessions en prêt au Haut Moyen Âge des Abbayes de Gorze et Wissembourg, de 661 à environ 860Kasten, Brigitte; Schäfer, Jens; Helfer, Malte et alE-print/Working paper (2016)In the medieval world, the abbey had multiple meanings. On the one hand, it was a place of spiritual life where the abbey community lived, prayed and worked according to the strict ideals of the rule. The ... [more ▼]In the medieval world, the abbey had multiple meanings. On the one hand, it was a place of spiritual life where the abbey community lived, prayed and worked according to the strict ideals of the rule. The schools, libraries and scriptoriums in which manuscripts were copied and partially decorated, also made it a centre of learning and the spread of knowledge. On the other hand, the abbeys were one of the largest landowners in the Middle Ages and their abbots were not only the superiors of religious communities but also the directors of large economic centres. The endowments for their foundation and donations from royalty or nobility provided the abbeys with considerable property. These assets were by no means a coherent mass in the vicinity of the abbey, but were rather scattered over long distances. The abbeys of Wissembourg and Gorze, through the cartularies that have come down to us, lend themselves to a more precise examination of the abbeys' economy. [less ▲]Detailed reference viewed: 45 (0 UL) Sites du patrimoine mondial de l'UNESCO dans la Grande Région SaarLorLuxMendgen, Eva; Helfer, Malte ; Pauly, Michel et alE-print/Working paper (2016)In 2017, the Greater Region SaarLorLux has no less than twelve sites on the UNESCO World Heritage List. They date from different periods, from prehistory to the beginning of the 20th century, and belong ... [more ▼]In 2017, the Greater Region SaarLorLux has no less than twelve sites on the UNESCO World Heritage List. They date from different periods, from prehistory to the beginning of the 20th century, and belong to different categories. Architectural and industrial monuments are part of the Greater Region's World Cultural Heritage, as are squares and entire cities, fortifications and cultural landscapes. The World Heritage sites bear witness to the rich European history and are a sign of the Greater Region's exceptional cultural diversity. They are also exceptionally beautiful and picturesque. Each of the World Heritage Sites is related to many other monuments, while providing its own context, history and spatial, cultural and social coordination system. In recent years, global and transnational aspects have gradually led to the listing of ensembles of sites and cultural landscapes. [less ▲]Detailed reference viewed: 38 (0 UL) Hybrid mesh/particle meshless method for modeling geological flows with discontinuous transport propertiesBourantas, Georgios ; Lavier, Luc; van Dam, Tonie et alE-print/Working paper (2016)In the present paper, we introduce the Finite Difference Method-Meshless Method (FDM-MM) in the context of geodynamical simulations. The proposed numerical scheme relies on the well-established FD method ... [more ▼]In the present paper, we introduce the Finite Difference Method-Meshless Method (FDM-MM) in the context of geodynamical simulations. The proposed numerical scheme relies on the well-established FD method along with the newly developed “meshless” method and, is considered as a hybrid Eulerian/Lagrangian scheme. Mass, momentum, and energy equations are solved using an FDM method, while material properties are distributed over a set of markers (particles), which represent the spatial domain, with the solution interpolated back to the Eulerian grid. The proposed scheme is capable of solving flow equations (Stokes flow) in uniform geometries with particles, “sprinkled” in the spatial domain and is used to solve convection- diffusion problems avoiding the oscillation produced in the Eulerian approach. The resulting algebraic linear systems were solved using direct solvers. Our hybrid approach can capture sharp variations of stresses and thermal gradients in problems with a strongly variable viscosity and thermal conductivity as demonstrated through various benchmarking test cases. The present hybrid approach allows for the accurate calculation of fine thermal structures, offering local type adaptivity through the flexibility of the particle method. [less ▲]Detailed reference viewed: 260 (17 UL) Krichever-Novikov type algebras and Wess-Zumino-Witten modelsSchlichenmaier, Martin E-print/Working paper (2015)Krichever--Novikov type algebras are generalizations of the Witt, Virasoro, affine Lie algebras, and their relatives to Riemann surfaces of arbitrary genus and/or the multi-point situation. They play a ... [more ▼]Krichever--Novikov type algebras are generalizations of the Witt, Virasoro, affine Lie algebras, and their relatives to Riemann surfaces of arbitrary genus and/or the multi-point situation. They play a very important role in the context of quantization of Conformal Field Theory. In this review we give the most important results about their structure, almost-grading and central extensions. Furthermore, we explain how they are used in the context of Wess--Zumino--Novikov--Witten models, respectively Knizhnik-Zamolodchikov connections. There they play a role as gauge algebras, as tangent directions to the moduli spaces, and as Sugawara operators. [less ▲]Detailed reference viewed: 83 (1 UL) On four Koszul-Tate resolutionsPistalo, Damjan ; Poncin, Norbert E-print/Working paper (2015)Detailed reference viewed: 192 (33 UL) Arbeitszufriedenheit der Arbeitnehmer in LuxemburgSischka, Philipp ; Steffgen, Georges E-print/Working paper (2015)Die Arbeitszufriedenheit der Arbeitnehmer in Luxemburg hat sich von 2013 zu 2014 insgesamt verringert. Von diesem Rückgang waren insbesondere Arbeitnehmer in der Altersklasse der 45-54 Jährigen ... [more ▼]Die Arbeitszufriedenheit der Arbeitnehmer in Luxemburg hat sich von 2013 zu 2014 insgesamt verringert. Von diesem Rückgang waren insbesondere Arbeitnehmer in der Altersklasse der 45-54 Jährigen, Arbeitnehmer mit portugiesischer Nationalität sowie in Belgien wohnhafte Arbeitnehmer betroffen. Die Veränderungen von 2014 zu 2015 fallen insgesamt moderater aus. Innerhalb dieses Zeitraums nimmt die Arbeitszufriedenheit der 16-24 Jährigen jedoch relativ stark ab. Arbeitnehmer mit portugiesischer Nationalität steigen in ihrer Arbeitszufriedenheit dagegen wieder an. Zu keinem der drei Erhebungszeitpunkte sind hinsichtlich der Arbeitszufriedenheit Unterschiede zwischen Männern und Frauen sowie zwischen Arbeitnehmern in Vollzeit und in Teilzeit festzustellen. Insgesamt berichten Manager und Führungskräfte sowie Arbeitnehmer in akademischen Berufen im Jahr 2015 über die höchste Arbeitszufriedenheit, dagegen Arbeitnehmer, die Anlagen und Maschinen bedienen sowie Arbeitnehmer, die in Land- und Forstwirtschaft beschäftigt sind, über die geringste Arbeitszufriedenheit. [less ▲]Detailed reference viewed: 346 (21 UL) Auswertung der Selbstevaluation des IDENT2-Projekts (2011-2014)Reckinger, Rachel E-print/Working paper (2015)Detailed reference viewed: 71 (2 UL) Valuing American options using fast recursive projectionsCosma, Antonio ; Galluccio, Stefano; Pederzoli, Paola et alE-print/Working paper (2015)We introduce a fast and widely applicable numerical pricing method that uses recursive projections. We characterize its convergence speed. We find that the early exercise boundary of an American call ... [more ▼]We introduce a fast and widely applicable numerical pricing method that uses recursive projections. We characterize its convergence speed. We find that the early exercise boundary of an American call option on a discrete dividend paying stock is higher under the Merton and Heston models than under the Black-Scholes model, as opposed to the continuous dividend case. A large database of call options on stocks with quarterly dividends shows that adding stochastic volatility and jumps to the Black-Scholes benchmark reduces the amount foregone by call holders failing to optimally exercise by 25%. Transaction fees cannot fully explain the suboptimal behavior. [less ▲]Detailed reference viewed: 146 (9 UL) Let's Talk Business: The Economic Impact of BrexitHerzog, Mechthild E-print/Working paper (2015)Detailed reference viewed: 341 (2 UL) Victimization and Safety in Luxembourg - Findings of the "Enquête sur la sécurité 2013"Heinz, Andreas ; Steffgen, Georges ; Willems, Helmut E-print/Working paper (2015)Cette publication présente les principaux résultats de « l'Enquête sur la sécurité 2013 » réalisée au Luxembourg par le STATEC et l'Université du Luxembourg/INSIDE. Les principaux objectifs de l’enquête ... [more ▼]Cette publication présente les principaux résultats de « l'Enquête sur la sécurité 2013 » réalisée au Luxembourg par le STATEC et l'Université du Luxembourg/INSIDE. Les principaux objectifs de l’enquête étaient de mesurer les taux de prévalence des délits de droit commun et de sonder les comportements relatifs à la délinquance et la sécurité. [less ▲]Detailed reference viewed: 240 (27 UL) The Demand for Diversification in Incomplete MarketsMehra, Rajnish ; Wahal, Sunil; Xie, DaruoE-print/Working paper (2015)Detailed reference viewed: 125 (4 UL) Props of ribbon graphs, involutive Lie bialgebras and moduli spaces of curves M_g,nMerkulov, Sergei ; Willwacher, ThomasE-print/Working paper (2015)We establish a new and surprisingly strong link between two previously unrelated theories: the theory of moduli spaces of curves $\cM_{g,n}$ (which, according to Penner, is controlled by the ribbon graph ... [more ▼]We establish a new and surprisingly strong link between two previously unrelated theories: the theory of moduli spaces of curves $\cM_{g,n}$ (which, according to Penner, is controlled by the ribbon graph complex) and the homotopy theory of $E_d$ operads (controlled by ordinary graph complexes with no ribbon structure, introduced first by Kontsevich). The link between the two goes through a new intermediate {\em stable}\, ribbon graph complex which has roots in the deformation theory of quantum $A_\infty$ algebras and the theory of Kontsevich compactifications of moduli spaces of curves $\overline{\cM}_{g,n}^K$. Using a new prop of ribbon graphs and the fact that it contains the prop of involutive Lie bialgebras as a subprop we find new algebraic structures on the classical ribbon graph complex computing $H^\bu(\cM_{g,n})$. We use them to prove Comparison Theorems, and in particular to construct a non-trivial map from the ordinary to the ribbon graph cohomology. On the technical side, we construct a functor $\f$ from the category of prop(erad)s to the category of operads. If a properad $\cP$ is in addition equipped with a map from the properad governing Lie bialgebras (or graded versions thereof), then we define a notion of $\cP$-graph'' complex, of stable $\cP$-graph complex and a certain operad, that is in good cases an $E_d$ operad. In the ribbon case, this latter operad acts on the deformation complexes of any quantum $A_\infty$-algebra. We also prove that there is a highly non-trivial, in general, action of the Grothendieck-Teichm\"uller group $GRT_1$ on the space of so-called {\em non-commutative Poisson structures}\, on any vector space $W$ equipped with a degree $-1$ symplectic form (which interpolate between cyclic $A_\infty$ structures in $W$ and ordinary polynomial Poisson structures on $W$ as an affine space). [less ▲]Detailed reference viewed: 107 (15 UL) Desperately Seeking Small Worlds in Corporate Boards: International Evidence from Listed FirmsHamadi, Malika; Heinen, Andreas; Jonard, Nicolas et alE-print/Working paper (2015)Detailed reference viewed: 181 (14 UL) N point Virasoro algebras considered as Krichever-Novikov type algebrasSchlichenmaier, Martin E-print/Working paper (2015)We explain how the recently again discussed $N$-point Witt, Virasoro, and affine Lie algebras are genus zero examples of the multi-point versions of Krichever--Novikov type algebras as introduced and ... [more ▼]We explain how the recently again discussed $N$-point Witt, Virasoro, and affine Lie algebras are genus zero examples of the multi-point versions of Krichever--Novikov type algebras as introduced and studied by Schlichenmaier. Using this more general point of view, useful structural insights and an easier access to calculations can be obtained. As example, explicit expressions for the three-point situation are given. This is a write-up of a talk presented at the Bialowieza meeting in 2015. Details can be found in a recent manuscript by the author. [less ▲]Detailed reference viewed: 124 (1 UL) Financing Patterns of European SMEs: An Empirical TaxonomyMoritz, Alexandra; Block, Joern; Heinz, Andreas E-print/Working paper (2015)This EIF Working Paper takes a holistic approach to investigate SME financing patterns in Europe by performing a cluster analysis including 12,726 SMEs in 28 European countries. The results reveal that ... [more ▼]This EIF Working Paper takes a holistic approach to investigate SME financing patterns in Europe by performing a cluster analysis including 12,726 SMEs in 28 European countries. The results reveal that SME financing in Europe is not homogenous but that different financing patterns exist. The cluster analysis identifies six distinct SME financing types: mixed-financed SMEs, state-subsidised SMEs, debt-financed SMEs, flexible-debt-financed SMEs, trade-financed SMEs and internally-financed SMEs. These SME financingtypes differ according to the number of financing instruments used and the combinations thereof. Furthermore, the SME financing types can be profiled according to their firm-, product-, industry- and country- specific characteristics. Our findings can support policy makers in assessing the impact of policy changes on SME financing and in designing financing programs tailored to the specific needs of SMEs. [less ▲]Detailed reference viewed: 135 (1 UL) Inflation Aversion in the European Union: Exploring the Myth of a North-South DivideHowarth, David ; Rommerskirchen, CharlotteE-print/Working paper (2015)Our study seeks to prove that German Stability Culture is a myth. The concept is a core legitimizing element of economic policy discourse in Germany and used regularly to juxtapose Germany and northern ... [more ▼]Our study seeks to prove that German Stability Culture is a myth. The concept is a core legitimizing element of economic policy discourse in Germany and used regularly to juxtapose Germany and northern Europe and the euro area periphery. Using Eurobarometer surveys we construct a measurement for Stability Culture which is based on the priority assigned to the fight against inflation. Our empirical analysis covers the 2002 to 2010 timespan and includes 27 European Union Member States. Our results show that the distinction between northern states with an allegedly strong and southern states with an allegedly weak Stability Culture is a myth. Controlling for actual inflation, we find that the northern Member States with an allegedly high Stability Culture are less concerned with price stability than the rest of the EU. [less ▲]Detailed reference viewed: 192 (1 UL) Assessing and Improving the Mutation Testing Practice of PITLaurent, Thomas; Ventresque, Anthony; Papadakis, Mike et alE-print/Working paper (2015)Detailed reference viewed: 175 (3 UL) Centrality of regions in R&D networks: Conceptual clarifications and a new measureBerge, Laurent ; Wanzenböck, Iris; Scherngell, ThomasE-print/Working paper (2015)This paper aims at introducing a novel measure of regional centrality in the context of R&D networks. We first demonstrate some substantial problems of SNA-based centrality measures to cope with regional ... [more ▼]This paper aims at introducing a novel measure of regional centrality in the context of R&D networks. We first demonstrate some substantial problems of SNA-based centrality measures to cope with regional R&D networks in a meaningful way. Then, we introduce a new measurement approach of regional network centrality based on the concept of inter-regional bridging paths (indirect connections at the regional level). We show that the formal definition of our regional bridging centrality measure can be expressed in terms of three simple components: the participation intensity of a region in inter-regional R&D collaborations, the relative outward orientation in terms of all established links and the diversification of R&D collaborations among partner regions. We illustrate the measure and its behaviour with respect to other conventional centrality measures by using the European co-patent network at the NUTS 2 level. [less ▲]Detailed reference viewed: 61 (0 UL) A Polyakov formula for sectorsAldana Dominguez, Clara Lucia ; Rowlett, JulieE-print/Working paper (2015)We consider finite area convex Euclidean circular sectors. We prove a variational Polyakov formula which shows how the zeta-regularized determinant of the Laplacian varies with respect to the opening ... [more ▼]We consider finite area convex Euclidean circular sectors. We prove a variational Polyakov formula which shows how the zeta-regularized determinant of the Laplacian varies with respect to the opening angle. Varying the angle corresponds to a conformal deformation in the direction of a conformal factor with a logarithmic singularity at the corner. As an application of the method, we obtain an analogues Polyakov formula for a surface with one conical singularity. We compute the zeta-regularized determinant of rectangular domains of fixed area and prove that it is uniquely maximized by the square. [less ▲]Detailed reference viewed: 163 (3 UL) Weyl type quantization for some symplectic symmetric spacesKorvers, Stéphane E-print/Working paper (2015)Detailed reference viewed: 31 (0 UL) Adelic openness without the Mumford-Tate conjectureHui, Chun Yin ; Larsen, MichaelE-print/Working paper (2015)Detailed reference viewed: 62 (1 UL) On rationality of certian type A Galois representationsHui, Chun Yin E-print/Working paper (2015)Detailed reference viewed: 65 (0 UL) On the Distribution of Frobenius of Weight 2 Eigenforms with Quadratic Coefficient FieldVan Hirtum, Jasper E-print/Working paper (2015)In this article we present a heuristic model that describes the asymptotic behaviour of the number of primes p such that the p-th coefficient of a given eigenform is a rational integer. We treat the case ... [more ▼]In this article we present a heuristic model that describes the asymptotic behaviour of the number of primes p such that the p-th coefficient of a given eigenform is a rational integer. We treat the case of a weight 2 eigenform with quadratic coefficient field without inner twists. Moreover we present numerical data which agrees with our model and the assumptions we made to obtain it. [less ▲]Detailed reference viewed: 99 (1 UL) Airport Congestion and Inefficiency in Slot AllocationPicard, Pierre M ; Tampieri, Alessandro ; Wan, XiE-print/Working paper (2015)This paper analyzes optimal slot allocation in the presence of airport congestion. We model peak and offpeak slots as vertically differentiated products, and congestion limits the number of peak slots ... [more ▼]This paper analyzes optimal slot allocation in the presence of airport congestion. We model peak and offpeak slots as vertically differentiated products, and congestion limits the number of peak slots that the airport can allocate. Inefficiency emerges when the airport does not exploit all its slots. We show that for a private airport, inefficiency may arise if the airport is not too congested and the per-passenger fee is small enough, while with a public airport it does not emerge. Furthermore the airport, irrespective of its ownership, tends to give different slots to flights with same destination if the underlying market is a duopoly, and a single slot if the underlying market is served by a monopoly. [less ▲]Detailed reference viewed: 127 (12 UL) Institutional Investors, Analysts' Recommendations, Annual Reports, Textual Analysis and Stock Returns: Evidence from SEC EDGAR 10-K and 13-F FormsChouliaras, Andreas E-print/Working paper (2015)Detailed reference viewed: 35 (2 UL) Remittance and Migration Prospects for the Twenty-First CenturyMachado Carneiro, Joël ; Docquier, FrédéricE-print/Working paper (2015)Detailed reference viewed: 85 (13 UL) The Comparative Political Economy of Basel IIIHowarth, David ; Quaglia, Lucia E-print/Working paper (2015)The Basel III Accord was the centerpiece of the international regulatory response to the global financial crisis, setting new capital requirements for internationally active banks. This paper explains the ... [more ▼]The Basel III Accord was the centerpiece of the international regulatory response to the global financial crisis, setting new capital requirements for internationally active banks. This paper explains the divergent preferences on Basel III of national regulators in three countries that approximate what are frequently presented as distinct varieties of capitalism in Europe – Germany, the United Kingdom and France. It is argued that national regulators faced a ‘trilemma’ in setting capital requirements, having to prioritize among banking sector stability, the competitiveness of national banks and short to medium term economic growth. Different varieties of national financial system – specifically, banking system and different kinds of ‘banking champions’ – explain the different prioritization of objectives in the ‘trilemma’ and hence for the divergent preferences of national regulators on Basel III capital requirements. [less ▲]Detailed reference viewed: 330 (1 UL) The Pessimism Factor: SEC EDGAR Form 10-K Textual Analysis and Stock ReturnsChouliaras, Andreas E-print/Working paper (2015)Detailed reference viewed: 110 (0 UL) 8pi-periodic Josephson effect in time-reversal invariant interacting Rashba nanowiresPedder, Christopher ; Meng, Tobias; Tiwari, Rakesh et alE-print/Working paper (2015)We investigate narrow quantum wires with strong Rashba spin-orbit coupling and electron-electron interactions. We show that virtual transitions between subbands lead to umklapp scattering which can open a ... [more ▼]We investigate narrow quantum wires with strong Rashba spin-orbit coupling and electron-electron interactions. We show that virtual transitions between subbands lead to umklapp scattering which can open a partial gap in the spectrum even in the presence of time-reversal symmetry. Using the superconducting proximity effect to gap out the remaining modes, we show that the system can host zero-energy states at its edges, which are protected by time-reversal symmetry. We present the parameter regime in which these bound states will emerge. Similarly to Majorana bound states, they will produce a zero-bias peak in the differential conductance. In contrast to the Majorana fermions, however, their fourfold degeneracy leads to an 8π periodicity of the Josephson current due to tunneling of fractionalized excitations with charge e/2. [less ▲]Detailed reference viewed: 178 (4 UL) Robust Precoding for Multibeam Satellite Channels with Phase UncertaintyGharanjik, Ahmad ; Shankar, Bhavani E-print/Working paper (2015)Detailed reference viewed: 144 (9 UL) Triple-A rating? Juncker's vision for the EU's social policy scorecardHerzog, Mechthild E-print/Working paper (2015)Detailed reference viewed: 65 (2 UL) N-point Virasoro algebras are multi-point Krichever--Novikov type algebrasSchlichenmaier, Martin E-print/Working paper (2015)We show how the recently again discussed $N$-point Witt, Virasoro, and affine Lie algebras are genus zero examples of the multi-point versions of Krichever--Novikov type algebras as introduced and studied ... [more ▼]We show how the recently again discussed $N$-point Witt, Virasoro, and affine Lie algebras are genus zero examples of the multi-point versions of Krichever--Novikov type algebras as introduced and studied by Schlichenmaier. Using this more general point of view, useful structural insights and an easier access to calculations can be obtained. The concept of almost-grading will yield information about triangular decompositions which are of importance in the theory of representations. As examples the algebra of functions, vector fields, differential operators, current algebras, affine Lie algebras, Lie superalgebras and their central extensions are studied. Very detailed calculations for the three-point case are given. [less ▲]Detailed reference viewed: 128 (6 UL) Pension insecurity and well-being in EuropeOlivera Angulo, Javier ; Ponomarenko, Valentina E-print/Working paper (2015)This paper studies pension insecurity in a sample of non-retired individuals aged 50 years or older from 18 European countries. We relate pension insecurity with the subjective expectations on the ... [more ▼]This paper studies pension insecurity in a sample of non-retired individuals aged 50 years or older from 18 European countries. We relate pension insecurity with the subjective expectations on the probability that the government will reduce the pensions of the individual before retirement or will increase the statutory retirement age. We argue that changes in economic conditions and policy affect the formation of such probabilities, and through this, subjective wellbeing. In particular, we study the effects of pension insecurity on subjective wellbeing with pooled OLS models, regressions per quintiles and instrumental variables. We find a statistically significant, stable and negative association between pension insecurity and subjective wellbeing. The quintile regressions allow us to establish that pension insecurity is more salient for individuals who are poorer, who subjectively assess their life survival rate as low and who have higher cognitive abilities. [less ▲]Detailed reference viewed: 459 (65 UL) Well-being differences in old-age in Europe: the Active Ageing Index by cohortsOlivera Angulo, Javier E-print/Working paper (2015)The goal of this paper is to study and explain the differences in wellbeing in old age across cohorts and countries in Europe. This is done with the replication of the Active Ageing Index for cohorts ... [more ▼]The goal of this paper is to study and explain the differences in wellbeing in old age across cohorts and countries in Europe. This is done with the replication of the Active Ageing Index for cohorts formed by age group, sex and country for 2012. The analysis is performed with different model regressions at the cohort level and introducing macro variables at the country level. In general, there is a gap in active ageing in detriment of females which is larger in older cohorts. In addition, wealth, equity and pension settings of the country are important predictors for better active ageing. Finally, it is found that the Social-Democratic welfare regime (Nordic countries) with its set of strong redistributive policies, is the most favourable system for active ageing. [less ▲]Detailed reference viewed: 312 (83 UL) Urban social structure, social capital and spatial proximityPatacchini, Eleonora; Picard, Pierre M ; Zenou, YvesE-print/Working paper (2015)We develop a theoretical model where the existence and intensity of dyadic contacts depend on location. We show that agents tend to interact more with agents that are highly central in the network of ... [more ▼]We develop a theoretical model where the existence and intensity of dyadic contacts depend on location. We show that agents tend to interact more with agents that are highly central in the network of social contacts and that are geographically closer. Using a unique geo-coded dataset of friendship networks in the United States, we find evidence consistent with this model. The main empirical challenge, which is the possible endogenous network formation, is tackled by employing a Bayesian methodology that allows to estimate simultaneously network formation and intensity of network contacts. [less ▲]Detailed reference viewed: 123 (14 UL) Zur Bedeutung der Tiermetaphorik in der Verschränkung von Ökonomie & Gender bei JelinekBloch, Natalie ; Pelka, ArturE-print/Working paper (2015)Detailed reference viewed: 91 (6 UL) Trade Credit and firm ComovementsPisa, Magdalena ; Bos, Jaap; Bams, DennisE-print/Working paper (2015)This paper provides evidence that production linkages, as well as credit chains (represented by trade credit), are important for the transmission of idiosyncratic (firm-level) shocks across firms in the ... [more ▼]This paper provides evidence that production linkages, as well as credit chains (represented by trade credit), are important for the transmission of idiosyncratic (firm-level) shocks across firms in the economy. We build on the idea that trade credit develops along production linkages, and amplifies the idiosyncratic shock as firms may lack inputs and also liquidity. Using disaggregated firm-level data we show that the disturbance of customer's sales increases with greater trade credit linkage. We show that during a recession the existence of trade credit linkage propagates shocks upstream, from a supplier onto its upstream customer. In these periods, firms are short of liquidity and are unable to withstand a drop in trade credit provision. In good times, however, trade credit plays a stabilizing role, reducing the volatility of firms' sales. In these periods, firms with sufficient liquidity are able to transfer some of it to liquidity-starved production partners in order to guarantee their own stable production. [less ▲]Detailed reference viewed: 63 (2 UL) Regards sur les cambriolages et les tentatives de cambriolagesHeinz, Andreas ; Steffgen, Georges ; Frising, Armande et alE-print/Working paper (2015)Selon l’enquête sur la sécurité 2013, 10% des ménages ont été victimes d’un cambriolage et 9% ont subi une tentative de cambriolage au cours des 5 dernières années. Il s’agit d’introductions ou de ... [more ▼]Selon l’enquête sur la sécurité 2013, 10% des ménages ont été victimes d’un cambriolage et 9% ont subi une tentative de cambriolage au cours des 5 dernières années. Il s’agit d’introductions ou de tentatives d’introduction dans leur bien immobilier au Luxembourg ou à l’étranger. La grande majorité des effractions (83%) a eu lieu au Grand-Duché et près d’un tiers (35%) se sont produites entre 22h et 6h. Dans 73% des cas, l’habitation était visée ; les installations extérieures, annexes et abris de jardin étant moins souvent concernés (26%). Si dans près de 8 cambriolages sur 10 un vol a effectivement été commis, la violence physique quant à elle reste plutôt rare (2%). 21.5% des incidents n’ont pas été déclarés à la police, en général parce que les victimes ont jugé que ça n’en vallait pas la peine. Lorsque le cambriolage a été déclaré, 47% des déclarants étaient « très satisfaits » et 23% « satisfaits » des services de la police. Les victimes de cambriolages ou tentatives de cambriolages sont davantage d’avis que le niveau de criminalité a globalement augmenté que les non-victimes. Ils apprécient moins le travail de la police et des tribunaux et se prononcent plutôt en faveur de peines de prison pour les cambrioleurs tandis que les non-victimes plaident plutôt pour des sanctions sous forme de travaux d’intérêt général. [less ▲]Detailed reference viewed: 133 (12 UL) Healing through Liquidity Injections ?Rasmouki, Fanou E-print/Working paper (2015)The unprecedentedly high borrowing costs of banks along with the armada of interventions by the ECB and kin institutions to prevent a financial haemorrhage underpin the motivation of this paper to re ... [more ▼]The unprecedentedly high borrowing costs of banks along with the armada of interventions by the ECB and kin institutions to prevent a financial haemorrhage underpin the motivation of this paper to re-visit the connection between default probabilities à la Merton and borrowing costs for a sample of large European banks. In doing so, the paper also investigates the ramifications of the ECB’s interventions on the health of the banking system. Furthermore, and building on Merton’s model, it proposes a simple measure of credit spreads that accounts for the nature of the credit risk profile of large financial institutions. The findings are unequivocal and suggest that higher default probabilities significantly explain the deteriorating ability of banks to borrow from the financial markets. More importantly, there is an increase in the degree to which default probabilities explain borrowing costs when policy measures undertaken by the ECB are incorporated. Conversely, the effect of the liquidity interventions is ambivalent: While liquidity measures directed towards the banking system have a curing effect on the borrowing costs of banks, those related to sovereigns seemingly have an impeding effect. [less ▲]Detailed reference viewed: 64 (2 UL) Regulator imposes warning on RTL for breach of commercial communication rulesCole, Mark ; Metzdorf, JennyE-print/Working paper (2015)Detailed reference viewed: 64 (6 UL) New Grand-Ducal Regulation on the film fund for audiovisual productionCole, Mark ; Metzdorf, JennyE-print/Working paper (2015)Detailed reference viewed: 75 (2 UL) New Act on the film fund for audiovisual productionCole, Mark ; Metzdorf, JennyE-print/Working paper (2015)Detailed reference viewed: 83 (5 UL) The Impact of Uncertainty in the Oil and Gold Market on the Cross-SectionLehnert, Thorsten ; Bams, Dennis; Blanchard, Gildas et alE-print/Working paper (2015)Detailed reference viewed: 71 (0 UL) On the Impact of Exclusion Filters Rules in Option PricingLehnert, Thorsten ; Dennis, Brams; Gildas, BlanchardE-print/Working paper (2015)Detailed reference viewed: 44 (0 UL) Radical Innovation – A domain of SMEs? A novel test of the Schumpeterian HypothesisAbou Lebdi, Nabil E-print/Working paper (2015)The Schumpeterian Hypothesis has been subject to a plethora of research aiming at the provision of new insights to the relationship of innovation on firm size. Utilizing a panel of German companies in ... [more ▼]The Schumpeterian Hypothesis has been subject to a plethora of research aiming at the provision of new insights to the relationship of innovation on firm size. Utilizing a panel of German companies in manufacturing industries from 1993-2011, this analysis explicitly distinguishes between radical and incremental innovation output. It reveals that firm size and radical innovation share an overall negative relationship, while the relationship between firm size and incremental innovation is positive. These results provide a novel explanation for the often-reported non-linear relationship between firm size and innovation. [less ▲]Detailed reference viewed: 176 (13 UL) Volume and non-existence of compact Clifford-Klein formsTholozan, Nicolas E-print/Working paper (2015)Detailed reference viewed: 61 (0 UL) The Transformation of the European Economic ConstitutionHofmann, Herwig ; Pantazatou, Aikaterini E-print/Working paper (2015)The current times of constitutional transformation in the EU place the following question on the agenda: Is the ongoing economic crisis demarcating the end of the original conception of a ‘European ... [more ▼]The current times of constitutional transformation in the EU place the following question on the agenda: Is the ongoing economic crisis demarcating the end of the original conception of a ‘European Economic Constitution’ as it has developed since the early days of the EEC? Or are we witnessing simply a shift towards a new more encompassing model of an EU ‘Economic Constitution’ in which economic government and economic governance tools are used in parallel to deepen integration and continue the spill-over of economic integration into previously national policies? This contribution traces and evaluates conceptual, regulatory, institutional and legitimacy-related changes and challenges to the EU’s model of the ‘Economic Constitution’ as the basic legal framework and conceptions of EU law governing economic policy. This chapter argues that the EU’s constitutional framework in the form of the existing Treaties and General Principles of EU law did not provide an adequate legal framework to cope with the ongoing crisis. This failure has, in our view, initiated an ongoing transformation of the EU’s ‘Economic Constitution’ as we know it. Laying the foundations for the transformation took place in several consecutive steps mostly on the intergovernmental level and often as a combination of EU law, public international law and in some cases mixed with private law instruments. The nature of this development creates challenges regarding ensuring compliance of these newly developed structures with the Union’s foundational principles of ensuring transparency, democratic legitimacy, fundamental rights and effective review mechanisms in the context of a system under the rule of law. In order to illustrate the modes of the continuous transformation of the ‘Eoncomic Constitution’ and to evaluate the direction it is taking, this chapter will start with tracing its origins and follow its evolution over time. It thereby distinguishes two separate but interlinked elements of the ‘Economic Constitution.’ It first looks at the original focus of European regulation regarding what we refer to as ‘micro-economic’ matters with policies including competition law and the control of state aids. This chapter then turns to the evolving focus of EU law the larger questions of economic and fiscal policies which we refer to in the following as the ‘macro-economic’ element of the constitutional framework. [less ▲]Detailed reference viewed: 344 (43 UL) Language profiles and practices of cross-border workers in LuxembourgFranziskus, Anne ; De Bres, Julia E-print/Working paper (2015)This paper summarises the findings of a questionnaire study investigating the language pro-files and practices of cross-border workers in Luxembourg. The study was undertaken in 2009 and includes 128 ... [more ▼]This paper summarises the findings of a questionnaire study investigating the language pro-files and practices of cross-border workers in Luxembourg. The study was undertaken in 2009 and includes 128 cross-border workers from 35 workplaces from different sectors, including the health sector, higher education and research, the manufacturing industry and the service sector. The study suggests that all the participants have a multilingual profile and have learnt at least one language in addition to their first one in the course of their life. A second result is that French is used in all the workplaces under investigation. But, at the same time, the major-ity of the cross-border worker participants have a multilingual professional life, most of them using more than one language at work on an everyday basis. This multilingualism comes in the form of a wide range of multilingual practices, including language accommodation, use of a lingua franca, code-switching and receptive multilingualism. Furthermore, two thirds of the participants report having learnt Luxembourgish either formally or informally, and half of those who have not learnt it, would like to do so in the future. [less ▲]Detailed reference viewed: 217 (5 UL) Increases in well-being after transition to retirement for unemployed. Catching up with formerly employed persons.Ponomarenko, Valentina ; Leist, Anja ; Chauvel, Louis E-print/Working paper (2015)This paper examines the extent to which well-being levels change in the transition to retirement depending on transitioning from being employed, unemployed, or economically inactive. Whereas transitioning ... [more ▼]This paper examines the extent to which well-being levels change in the transition to retirement depending on transitioning from being employed, unemployed, or economically inactive. Whereas transitioning from employment to unemployment has been found to cause an increase in depressive symptoms or decline in life satisfaction with more time spent in unemployment, it is not clear to which extent transitioning from unemployment to retirement affects well-being levels compared to retiring after being employed or economically inactive. We use two waves of the Survey of Health, Ageing and Retirement in Europe monitoring respondents transitioning to retirement and use life satisfaction as well-being measure. The effect of the transition is captured with a difference-in-difference like approach to test if the change in well-being after retirement is different for persons who were formerly unemployed or inactive, respectively, compared to formerly employed retirees. Results indicate that retiring from unemployment is associated with an increase in life satisfaction, but presents mainly a catching-up effect compared to employed persons transitioning to retirement. Retirement from labour market inactivity, especially sick leave, does not lead to significant changes in well-being. Findings are robust to selection into unemployment and country differences. As well-being of unemployed persons recovers after transitioning to retirement, especially the currently unemployed population should be supported to prevent detrimental consequences of economically unfavourable conditions and lower well-being. [less ▲]Detailed reference viewed: 396 (22 UL) Intertemporal pro-poornessPalmisano, Flaviana ; Bresson, Florent; Duclos, Jean-YvesE-print/Working paper (2015)Detailed reference viewed: 109 (1 UL) Multilingualism in advertising and a shifting balance of languages in LuxembourgDe Bres, Julia E-print/Working paper (2015)Much research on multilingualism in advertising has been undertaken in comparatively mono-lingual settings. Whereas such research may provide insights into the connotations of lan-guages used in ... [more ▼]Much research on multilingualism in advertising has been undertaken in comparatively mono-lingual settings. Whereas such research may provide insights into the connotations of lan-guages used in advertising, research in more multilingual contexts can also provide different kinds of insights regarding the relative status of languages in a multilingual environment. This article focuses on multilingualism in written advertising in the highly multilingual setting of Luxembourg, where the language situation is currently undergoing significant change due to patterns of globalisation and migration. Analysis of a mixed corpus of advertisements, includ-ing 1,038 advertisements in the free daily newspaper l’Essentiel from 2009 to 2011, as well as selected further advertisements from elsewhere within Luxembourg’s linguistic landscape, reflects a move within Luxembourg in general from a longstanding trilingualism in French, German and Luxembourgish to different kinds of multilingualism, incorporating both the presence of new languages and changes in the relative roles of French, German and Luxem-bourgish. Particularly significant is the presence of Luxembourgish as a written language of advertising, whereas it traditionally functioned mainly as a spoken language in Luxembourg. The article presents the results of a quantitative and qualitative analysis of the advertisements and discusses how multilingualism in written advertising provides a pertinent window on changing forms of multilingualism in Luxembourg. [less ▲]Detailed reference viewed: 518 (23 UL) Inequality of opportunity during the great recession in UgandaPalmisano, Flaviana ; Brunori, Paolo; Peragine, VitoE-print/Working paper (2015)Detailed reference viewed: 111 (3 UL) Does tax competition increase disparity among jurisdictions?Han, Yutao; Pieretti, Patrice ; Zou, Benteng E-print/Working paper (2015)This paper investigates whether a less-developed economy can catch up with a more developed one when they compete for foreign direct investments. The main message of the paper is that jurisdictional ... [more ▼]This paper investigates whether a less-developed economy can catch up with a more developed one when they compete for foreign direct investments. The main message of the paper is that jurisdictional competition can enable the lagging country to catch up if capital mobility is sufficiently high and the productivity gap is not too large. Further, we show that size asymmetry reinforces (weakens) the productivity catch-up resulting from interjurisdictional competition when the lagging economy is small (large). Finally, we demonstrate that the development gap widens when capital becomes less mobile, which is at odds with previous findings. [less ▲]Detailed reference viewed: 89 (5 UL) Kontrolle und Aufsicht im Jugendmedienschutz: Einrichtungen und Verfahren nach dem JMStV im Vergleich zum JuSchG – Eine Untersuchung der aktuellen Rechtslage im Blick auf den NovellierungsbedarfCole, Mark E-print/Working paper (2015)Detailed reference viewed: 94 (4 UL) Stochastic stability of endogenous growth: Theory and applicationsBoucekkine, Raouf; Pintus, Patrick; Zou, Benteng E-print/Working paper (2015)We examine the issue of stability of stochastic endogenous growth. First, stochastic stability concepts are introduced and applied to stochastic linear homogenous differen- tial equations to which several ... [more ▼]We examine the issue of stability of stochastic endogenous growth. First, stochastic stability concepts are introduced and applied to stochastic linear homogenous differen- tial equations to which several stochastic endogenous growth models reduce. Second, we apply the mathematical theory to two models, starting with the stochastic AK model. It’s shown that in this case exponential balanced paths, which characterize optimal trajectories in the absence of uncertainty, are not robust to uncertainty: the economy may almost surely collapse at exponential speed even though productivity is initially arbitrarily high. Finally, we revisit the seminal global diversification endogenous growth model (Obstfeld, 1994): taking into account stochastic stability calls for a redefinition of the mean growth concept, which leads to revisit the established wisdom on the growth effect of global diversification. [less ▲]Detailed reference viewed: 103 (8 UL) Intercultural work environments in Luxembourg. Multilingualism and cultural diversity among cross-border workers at the workplaceWille, Christian ; De Bres, Julia ; Franziskus, AnneE-print/Working paper (2015)The trilingual country of Luxembourg accounts for the highest percentage of cross-border workers in the European Union. These workers commute daily from France, Belgium and Germany to Luxembourg. Their ... [more ▼]The trilingual country of Luxembourg accounts for the highest percentage of cross-border workers in the European Union. These workers commute daily from France, Belgium and Germany to Luxembourg. Their presence in the national labour market results in increasing linguistic and cultural diversity at Luxembourgish workplaces. Drawing upon interview and interactional data, the present contribution is the first to investigate how cross-border workers in Luxembourg perceive and deal with multilingualism and interculturality, and presents a range of related linguistic and intercultural practices. [less ▲]Detailed reference viewed: 592 (30 UL) Large Galois images for Jacobian varieties of genus 3 curvesArias De Reyna Dominguez, Sara ; Armana, Cécile; Karemaker, Valentijn et alE-print/Working paper (2015)Given a prime number l greater than or equal to 5, we construct an infinite family of three-dimensional abelian varieties over Q such that, for any A/Q in the family, the Galois representation \rho_{A, l ... [more ▼]Given a prime number l greater than or equal to 5, we construct an infinite family of three-dimensional abelian varieties over Q such that, for any A/Q in the family, the Galois representation \rho_{A, l}: Gal_Q -> GSp(6, l) attached to the l-torsion of A is surjective. Any such variety A will be the Jacobian of a genus 3 curve over Q whose respective reductions at two auxiliary primes we prescribe to provide us with generators of Sp(6, l). [less ▲]Detailed reference viewed: 107 (1 UL) Model structure on differential graded commutative algebras over the ring of differential operatorsDi Brino, Gennaro ; Pistalo, Damjan ; Poncin, Norbert E-print/Working paper (2015)Detailed reference viewed: 276 (69 UL) International vergleichende Analyse von Einrichtungen und Arbeitszusammenhängen der InterkulturalitätsforschungWille, Christian ; von der Wense, Edwina; Heimböckel, Dieter E-print/Working paper (2015)Die vorliegende vergleichende Analyse von Einrichtungen und Arbeitszusammenhängen der Interkulturalitätsforschung wurde im Zuge der Einrichtungen des fakultären Schwerpunktbereichs MIS – Mehrsprachigkeit ... [more ▼]Die vorliegende vergleichende Analyse von Einrichtungen und Arbeitszusammenhängen der Interkulturalitätsforschung wurde im Zuge der Einrichtungen des fakultären Schwerpunktbereichs MIS – Mehrsprachigkeit und Interkulturelle Studien durchgeführt. Ziel war es zentrale Orientierungspunkte für eine strategische Positionierung und für zukünftige Entwicklungslinien des Schwerpunktbereichs zu gewinnen. Dafür wurden die Internetseiten von 64 vergleichbaren Einrichtungen bzw. Arbeitszusammenhängen der Interkulturalitätsforschung inhaltsanalytisch untersucht. Zur Stichprobe zählen in erster Linie eigenständige Zentren und Institute/Abteilungen aus dem universitären Kontext mit international breit gestreuten Standorten; Arbeitszusammenhänge bzw. Einrichtungen aus dem deutschsprachigen Raum sind besonders gut vertreten. [less ▲]Detailed reference viewed: 211 (10 UL) Type A images of Galois representations and maximalityHui, Chun Yin ; Larsen, MichaelE-print/Working paper (2015)Detailed reference viewed: 100 (0 UL) Invariant dimensions and maximality of geometric monodromy actionHui, Chun Yin E-print/Working paper (2015)Detailed reference viewed: 65 (1 UL) Monetary Policy with 100% Reserve Banking: An ExplorationMehra, Rajnish ; Wessel, Ryan; Prescott, Edward C.E-print/Working paper (2015)Detailed reference viewed: 46 (0 UL) Model categorical Koszul-Tate resolution for algebras over differential operatorsDi Brino, Gennaro ; Pistalo, Damjan ; Poncin, Norbert E-print/Working paper (2015)Detailed reference viewed: 191 (50 UL) The determinants of CoCo bond pricesWolff, Christian E-print/Working paper (2015)Detailed reference viewed: 129 (3 UL) Regular and irregular holonomic D-modulesKashiwara, Masaki; Schapira, Pierre E-print/Working paper (2015)Detailed reference viewed: 107 (0 UL) Closing the Seasonal Agricultural Workers Scheme: A Triple LossConsterdine, Erica; Samuk, Sahizer E-print/Working paper (2015)Despite temporary migration programmes (TMPs) being heralded as achieving a triple win – whereby the host state, the sending state and the migrants themselves all benefit – the UK government has now ... [more ▼]Despite temporary migration programmes (TMPs) being heralded as achieving a triple win – whereby the host state, the sending state and the migrants themselves all benefit – the UK government has now terminated all such programmes, including the longstanding Seasonal Agricultural Workers Scheme (SAWS). At the same time, TMPs have been heavily criticised by both the academic and policy sectors, as they tie workers to employers in rigid ways and lack integration measures. This paper reviews the SAWS scheme, including the policy evolution of the programme and the reasons for the closure. We argue that the government is inflicting a multiple loss scenario, whereby permanent immigration may increase, labour market shortages will be rife, remittances and skills transfers will be lost, and irregular immigration and in turn exploitation of migrant worker rights may be exacerbated. Whilst the policy design of SAWS was far from perfect, we argue that a modified version, targeting agricultural students, should be retained, which could restore the triple-win scenario. [less ▲]Detailed reference viewed: 88 (0 UL) Espaces de frontière. Penser et analyser la frontière en tant qu’espaceWille, Christian E-print/Working paper (2015)Les frontières se différencient non seulement en fonction des domaines d'étude où elles sont opérantes ou dans lesquels elles se constituent, mais également en termes de modes de (re)production et de ... [more ▼]Les frontières se différencient non seulement en fonction des domaines d'étude où elles sont opérantes ou dans lesquels elles se constituent, mais également en termes de modes de (re)production et de formes. Cette communication traitera en premier lieu de la forme de la frontière, sachant que ce n’est pas la frontière territoriale en tant que ligne qui importera, mais plutôt son caractère zonal et la question de savoir comment il est possible de l'aborder dans une perspective théorico-conceptuelle aux fins de l’étude empirique. Il est plus judicieux de considérer les frontières territoriales comme zones ou espaces, la métaphore de la ligne s'avérant une pure fiction. Jusqu’au XVIIIe siècle, les frontières étaient conçues comme des espaces de contact et des zones de transition (convoitées), ce n’est qu’avec l’avènement d’États nationaux modernes que s’établit le concept de frontière comme ligne – sans qu’elle n’ait perdu empiriquement son caractère zonal. C’est ce qu’on peut notamment constater dans les régions transfrontalières où les frontières territoriales ne peuvent se réduire à leur fonction de différenciation ou de passerelle, mais au contraire s’élargissent – comme le montre la mobilité transfrontalière des travailleurs, des consommateurs ainsi que la mobilité résidentielle – se transformant ainsi en zones de l'entre-deux. Ces zones ne peuvent pas être concédées aux espaces situés en deçà et au-delà d’une frontière territoriale, elles représentent en revanche des espaces autonomes, lesdits « espaces de frontière » qui revêtent une identité liminale. L'objet de cette communication est de savoir comment il est possible de décrire et d'étudier de tels espaces que l'on peut observer comme productions quotidiennes. Il s’agit (1) de percevoir de manière conceptuelle le caractère zonal de la frontière, donc la dimension spatiale, (2) le potentiel innovateur et imprévisible de la liminalité et ainsi la contingence sociale. La géographie sociale et la sociologie de la culture en livrent des points de départ pertinents. La mise en relation d’approches concernant l’espace et la pratique sociale issues de ces deux disciplines représente la base du modèle « espaces de frontière » qui permet de penser les frontières en tant qu’espaces et met en place une heuristique destinée à l’étude de constitutions spatiales centrées sur le sujet comme (re)productions des frontières. Les pratiques sociales, la connaissance pratique ainsi que les aspects physico-matériels et socio-structurels tels qu'ils sont appropriés et engendrés par les « frontaliers » dans des références transfrontalières, font partie des catégories d'analyse. [less ▲]Detailed reference viewed: 587 (28 UL) Invariant connections and PBW theorem for Lie groupoid pairsLaurent-Gengoux, Camille; Voglaire, Yannick E-print/Working paper (2015)Given a closed wide Lie subgroupoid $\mathbf{A}$ of a Lie groupoid $\mathbf{L}$, i.e. a Lie groupoid pair, we interpret the associated Atiyah class as the obstruction to the existence of $\mathbf{L ... [more ▼]Given a closed wide Lie subgroupoid$\mathbf{A}$of a Lie groupoid$\mathbf{L}$, i.e. a Lie groupoid pair, we interpret the associated Atiyah class as the obstruction to the existence of$\mathbf{L}$-invariant fibrewise affine connections on the homogeneous space$\mathbf{L}/\mathbf{A}$. For Lie groupoid pairs with vanishing Atiyah class, we show that the left$\mathbf{A}$-action on the quotient space$\mathbf{L}/\mathbf{A}$can be linearized. In addition to giving an alternative proof of a result of Calaque about the Poincare-Birkhoff-Witt map for Lie algebroid pairs with vanishing Atiyah class, this result specializes to a necessary and sufficient condition for the linearization of dressing actions, and gives a clear interpretation of the Molino class as an obstruction to simultaneous linearization of all the monodromies. In the course of the paper, a general theory of connections and connection forms on Lie groupoid principal bundles is developed. Also, a computational substitute to the adjoint action (which only exists "up to homotopy") is suggested. [less ▲]Detailed reference viewed: 211 (28 UL) Accelerating the DC algorithm for smooth functionsAragón Artacho, Francisco Javier ; Fleming, Ronan MT ; Phan, Vuong E-print/Working paper (2015)We introduce two new algorithms to minimise smooth difference of convex (DC) functions that accelerate the convergence of the classical DC algorithm (DCA). We prove that the point computed by DCA can be ... [more ▼]We introduce two new algorithms to minimise smooth difference of convex (DC) functions that accelerate the convergence of the classical DC algorithm (DCA). We prove that the point computed by DCA can be used to define a descent direction for the objective function evaluated at this point. Our algorithms are based on a combination of DCA together with a line search step that uses this descent direction. Convergence of the algorithms is proved and the rate of convergence is analysed under the Łojasiewicz property of the objective function. We apply our algorithms to a class of smooth DC programs arising in the study of biochemical reaction networks, where the objective function is real analytic and thus satisfies the Łojasiewicz property. Numerical tests on various biochemical models clearly show that our algorithms outperforms DCA, being on average more than four times faster in both computational time and the number of iterations. The algorithms are globally convergent to a non-equilibrium steady state of a biochemical network, with only chemically consistent restrictions on the network topology. [less ▲]Detailed reference viewed: 175 (16 UL) Legal Manifestations of the Emergency in National Euro Crisis LawCoutts, Stephen; Díez Sánchez, Leticia; Marketou, Afroditi et alE-print/Working paper (2015)Most constitutions foresee a 'state of emergency' associated with the existence of an armed conflict. Paradoxically, modern societies seem to be permanently confronted with genuine emergencies ... [more ▼]Most constitutions foresee a 'state of emergency' associated with the existence of an armed conflict. Paradoxically, modern societies seem to be permanently confronted with genuine emergencies increasingly removed from the threat of actual, physical violence. The Eurozone crisis can be said to have accentuated this, as the immense pressures from financial markets have turned the control of public finances into a struggle for the survival of the affected States. The present paper explores the legal manifestations of emergency in the domestic law of Greece, Italy, Spain and Ireland. These countries have all been hit by the Eurozone crisis (albeit in different manners) and have had to accommodate external oversight in their crisis management. The adoption of emergency measures for tackling the economic upheavals has been diverse across the case studies, although all have in common the emergence of a prominent role for the executive in the aftermath of the Eurozone crisis. [less ▲]Detailed reference viewed: 39 (3 UL) Wohnmobilität in der Großregion - eine interurbane DiskursanalyseChristmann, Nathalie E-print/Working paper (2015)“Je t’aime, moi non plus” : this is how the French newspaper L’Express (2011, p. II) summarises the transnational linkages of Luxembourg with its neighbouring countries. On the one hand, the ‘economic ... [more ▼]“Je t’aime, moi non plus” : this is how the French newspaper L’Express (2011, p. II) summarises the transnational linkages of Luxembourg with its neighbouring countries. On the one hand, the ‘economic engine’ Luxembourg offers workplaces for many commuters, positively affecting the development of this European cross-border polycentric metropolitan region; on the other hand, negative consequences such as the overcrowded real estate mar-ket in Luxembourg continue beyond the national border and affect neighbouring housing markets. The ‘2020 Concept for the Region Trier’ shows that city councils perceive the prox-imity to Luxembourg as an opportunity for the development of the city. Simultaneously, lo-cals might feel displaced due to increasing rents and house prices, and develop resentment vis-à-vis their new neighbours, coming either from Luxembourg, or being Belgian, German or French nationals (labour migrants) that have moved to the border region to work in the Grand Duchy of Luxembourg, thus disposing of higher purchase power. Depending on the context, similar effects can thus be perceived very differently by city councils or planners and the local population. So far, studies dealing with the processes of transmigration have mostly focussed on indi-vidual motives of migrants, whereas impacts on the regions of destination have not been explored. The aim of this study is to explore ongoing discourses dealing with spatial impacts in relation to urban housing markets within the Greater Region. The focus will be on the cit-ies Arlon (BE), Metz and Thionville (FR), and Trier (DE). Therefore mixed methods will be de-ployed. Firstly, a quantitative analysis is planned to reveal the magnitude and the spatial distribution of the (cross-border) residential mobility. The evolution of housing prices and rents as well as population dynamics will be examined. Secondly, ongoing discourses and the changes of life-worlds will be studied using quantitative methods as well as qualitative methods, such as content analysis, to review the guiding principles of municipal policy and urban planning documents. A quantitative analysis of local newspapers will be conducted to analyse public opinion. A content analysis of this material will follow. The method mix allows us to better understand “material” evolutions and to trace the current discourses within this field. Discourse approaches have become common in interdis-ciplinary social science academic research. However, there are no established theoretical and methodological guidelines for applying these approaches. This project has to deal with this situation and to take into account different cultural backgrounds and discussion levels. This study will help to frame today’s situation and aims to develop sustainable solutions for future urban planning. [less ▲]Detailed reference viewed: 585 (12 UL) Law, Public Interest and Interpretation: Prolegomena of a Normative Framework on Administrative Discretion in the EUMendes, Joana E-print/Working paper (2015)It is conventionally assumed that administrative discretionary decisions are determined by political and expert-driven considerations and that law’s structuring and constraining capacity in that regard is ... [more ▼]It is conventionally assumed that administrative discretionary decisions are determined by political and expert-driven considerations and that law’s structuring and constraining capacity in that regard is and should be limited. Law defines a space within which discretionary choices are irrelevant to law because they have the same legal value. These tenets have shaped both the ways the Court of Justice of the European Union has approached judicial review of discretion and, more generally, the way law is perceived to structure administrative discretion in the Member States and also in the EU. However, the recent expansion of the regulatory powers of the European Union justifies revisiting these basic axioms. In particular, how far should discretion be shielded from the values that EU law conveys? This paper proposes a normative elaboration of a core idea of public law to stress that law twins administrative discretion with a duty of regard to pre-determined public interests. On this basis, legal rules are able to provide a yardstick of critique of decisions that administrative officials adopt within spaces of discretion. An analysis of the Meroni judgment shows how this argument applies to EU law. But this claim only prepares the ground for a more complex inquiry: How does law operate – and how should it operate – within the spaces of administrative discretion, and how should courts review discretionary decisions? Administrative decision-makers construct the law in a specific institutional context in view of their specific tasks. Arguably, one should understand the specific processes through which they interpret the law to know how law may provide substantive criteria that guide discretionary choices. Such understanding would also be the basis to define and assess suitable degrees of judicial review of administrative discretion. One could then make a critical assessment – difficult to make at present – of the shifting boundaries between spaces of discretion and of judicial review that the dictum “manifest error of assessment, misuse of power or excess of power” conceals. This latter argument draws on the debate among US administrative law scholars on agency interpretation of statutes, but it is also mindful of conceptual distinctions that have prevailed in legal scholarship in Europe. The paper defines the prolegomena of a normative framework of a broader research project. It is work in progress. [less ▲]Detailed reference viewed: 180 (5 UL) How a Brexit Would Influence the British Economy. A Four-Part Brexit BlogHerzog, Mechthild E-print/Working paper (2015)Detailed reference viewed: 255 (3 UL) The asymmetric effect of expectations on subjective well-beingBarazzetta, Marta E-print/Working paper (2015)We empirically explore the relationship between expectations and subjective well-being. The- oretical models predict that expectations can in uence experienced utility in two ways: (i) directly as ... [more ▼]We empirically explore the relationship between expectations and subjective well-being. The- oretical models predict that expectations can in uence experienced utility in two ways: (i) directly as anticipatory emotions in the form of savouring or dread; (ii) indirectly as internal reference levels in the form of deviations between expectations and actual achievements. We use twelve waves of the British Household Panel Survey to empirically investigate the double effect of expectations on experienced utility, as proxied by subjective well-being. We find a strong asymmetry in the way expectations affect subjective well-being. Negative deviations from expectations have a strong negative effect on subjective well-being, while the effect of positive deviations is weaker and sometimes insignificant. Expecting a worsening has a larger impact on subjective well-being than expecting an improvement. [less ▲]Detailed reference viewed: 128 (9 UL) Competition among Coalitions in a Cournot Industry: A Validation of the Porter HypothesisTampieri, Alessandro ; Lambertini, Luca; Pignataro, GiuseppeE-print/Working paper (2015)Detailed reference viewed: 88 (7 UL) Environmental Policy and the Size Distribution of FirmsCoria, Jessica; Kyriakopoulou, Efthymia E-print/Working paper (2015)In this paper we analyze the e¤ects of environmental policies on the size distribution of firms. We model a stationary industry where the observed size distribution is a solution to the profit ... [more ▼]In this paper we analyze the e¤ects of environmental policies on the size distribution of firms. We model a stationary industry where the observed size distribution is a solution to the profit maximization problem of heterogeneous firms that di¤er in terms of their energy e¢ ciency. We compare the equilibrium size distribution under emission taxes, uniform emission standards, and performance standards. Our results indicate that, unlike emission taxes and performance standards, emission standards introduce regulatory asymmetries favoring small firms. These asymmetries cause significant detrimental e¤ects on total output and total welfare, yet lead to reduced emissions and might help preserve small businesses. [less ▲]Detailed reference viewed: 135 (0 UL) Museums: LuxembourgKmec, Sonja E-print/Working paper (2015)Detailed reference viewed: 78 (1 UL) Historical societies: LuxembourgKmec, Sonja E-print/Working paper (2015)Detailed reference viewed: 73 (1 UL) Realization spaces of algebraic structures on chainsYalin, Sinan E-print/Working paper (2015)Given an algebraic structure on the homology of a chain complex, we define its realization space as a Kan complex whose vertices are the structures up to homotopy realizing this structure at the homology ... [more ▼]Given an algebraic structure on the homology of a chain complex, we define its realization space as a Kan complex whose vertices are the structures up to homotopy realizing this structure at the homology level. Our algebraic structures are parametrised by props and thus include various kinds of bialgebras. We give a general formula to compute subsets of equivalences classes of realizations as quotients of automorphism groups, and determine the higher homotopy groups via the cohomology of deformation complexes. As a motivating example, we compute subsets of equivalences classes of realizations of Poincar\'e duality for several examples of manifolds. [less ▲]Detailed reference viewed: 51 (0 UL) Euro Crash RiskKräussl, Roman ; Lehnert, Thorsten ; Sigita, SenulyteE-print/Working paper (2015)Detailed reference viewed: 51 (0 UL) Gauweiler and OMT: Lessons for EU Public Law and the European Economic and Monetary UnionHofmann, Herwig E-print/Working paper (2015)Do exceptional situations make exceptional good or exceptionally bad law? This is an old question often asked anew – especially in the context of the post-2008 economic crises travails of the European ... [more ▼]Do exceptional situations make exceptional good or exceptionally bad law? This is an old question often asked anew – especially in the context of the post-2008 economic crises travails of the European Economic and Monetary Union (EMU). The legal disputes which resulted from differing opinions about how to solve the crises and also how, incidentally, to improve the EMU’s governance have reached the Court of Justice of the European Union (CJEU). The most prominent case to date is the so called Gauweiler case, a preliminary reference procedure initiated by the German Constitutional Court, the Bundesverfassungsgericht (BVerfG). [less ▲]Detailed reference viewed: 380 (8 UL) Optimal Berry-Esseen bounds on the Poisson space.Peccati, Giovanni ; Azmoodeh, Ehsan E-print/Working paper (2015)Detailed reference viewed: 68 (0 UL) The projective linear supergroup and the SUSY-preserving automorphisms of P^1|1Kwok, Stephen E-print/Working paper (2015)The purpose of this paper is to describe the projective linear supergroup, its relation with the automorphisms of the projective superspace and to determine the supergroup of SUSY preserving automorphisms ... [more ▼]The purpose of this paper is to describe the projective linear supergroup, its relation with the automorphisms of the projective superspace and to determine the supergroup of SUSY preserving automorphisms of${\mathbf P}^{1|1}\$ [less ▲]Detailed reference viewed: 71 (2 UL) The “Tone Effect” of News on Investor Beliefs: An Experimental ApproachKräussl, Roman ; Bosman,, Ronald; Schulze,, William et alE-print/Working paper (2015)Detailed reference viewed: 108 (6 UL) Flat Z-graded connections and loop spacesArias Abad, Camilo; Schatz, Florian E-print/Working paper (2015)The pull back of a flat bundle E→X along the evaluation map π:LX→X from the free loop space LX to X comes equipped with a canonical automorphism given by the holonomies of E. This construction naturally ... [more ▼]The pull back of a flat bundle E→X along the evaluation map π:LX→X from the free loop space LX to X comes equipped with a canonical automorphism given by the holonomies of E. This construction naturally generalizes to flat Z-graded connections on X. Our main result is that the restriction of this holonomy automorphism to the based loop space ΩX of X provides an A-infinity quasi-equivalence between the dg category of flat Z-graded connections on X and the dg category of representations of C(ΩX), the dg algebra of singular chains on ΩX. [less ▲]Detailed reference viewed: 135 (8 UL) Sheaves and D-modules on Lorentzian manifoldsSchapira, Pierre ; Jubin, Benoît Michel E-print/Working paper (2015)Detailed reference viewed: 122 (0 UL) Studying employers’ risk assessment and the role of institutions: An experimental designShi, Penghui Lulu; Imdorf, Christian; Samuel, Robin E-print/Working paper (2015)Work Package 7 aims at understanding how early job insecurity can affect an individual’s future career from an employer’s perspective. By paying special attention to the educational background and gender ... [more ▼]Work Package 7 aims at understanding how early job insecurity can affect an individual’s future career from an employer’s perspective. By paying special attention to the educational background and gender of the applicants, we plan to investigate how employers interpret young applicants’ job insecurity, for example in the form of unemployment or job-mismatch experiences, during recruitment. The negative effects of such experiences on an individual’s chances of being recruited successfully – so called scarring effects – may further vary depending on economic and institutional contexts such as country-specific economic or political conditions, educational structures or economic sectors. By surveying employers from different sectors, we will examine if and how these scarring effects vary between four different countries: Bulgaria, Greece, Norway and Switzerland. We will apply an innovative methodology in the form of an employer-sided survey with an integrated multidimensional vignette experiment in order to simulate the impact of multiple factor s on success and failure when young people who experienced job insecurities apply for new jobs. In the present working paper we summarise the major theoretical concepts that have been used to explain the scarring effects that can result from employer behaviour. Moreover, we outline how we plan to collect data in WP 7 in order to analyse scarring through decision-making on behalf of employers during the recruitment process [less ▲]Detailed reference viewed: 134 (11 UL)