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See detailAn observation of circular RNAs in bacterial RNA-seq data
Innocenti, Nicolas; Nguyen, Hoang-Son; Fouquier d'Hérouël, Aymeric UL et al

E-print/Working paper (2016)

Circular RNAs (circRNAs) are a class of RNA with an important role in micro RNA (miRNA) regulation recently discovered in Human and various other eukaryotes as well as in archaea. Here, we have analyzed ... [more ▼]

Circular RNAs (circRNAs) are a class of RNA with an important role in micro RNA (miRNA) regulation recently discovered in Human and various other eukaryotes as well as in archaea. Here, we have analyzed RNA-seq data obtained from Enterococcus faecalis and Escherichia coli in a way similar to previous studies performed on eukaryotes. We report observations of circRNAs in RNA-seq data that are reproducible across multiple experiments performed with different protocols or growth conditions. [less ▲]

Detailed reference viewed: 65 (10 UL)
See detailAttractors in spacetimes and time functions
Monclair, Daniel UL

E-print/Working paper (2016)

Detailed reference viewed: 34 (0 UL)
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See detailConceptual Confusion: the case of Epigenetics
Oliveira Pisco, Angela; Fouquier d'Hérouël, Aymeric UL; Huang, Sui

E-print/Working paper (2016)

The observations of phenotypic plasticity have stimulated the revival of "epigenetics". Over the past 70 years the term has come in many colors and flavors, depending on the biological discipline and time ... [more ▼]

The observations of phenotypic plasticity have stimulated the revival of "epigenetics". Over the past 70 years the term has come in many colors and flavors, depending on the biological discipline and time period. The meanings span from Waddington "epigenotype" and "epigenetic landscape" to the molecular biologists "epigenetic marks" embodied by DNA methylation and histone modifications. Here we seek to quell the ambiguity of the name. First we place "epigenetic" in the various historical contexts. Then, by presenting the formal concepts of dynamical systems theory we show that the "epigenetic landscape" is more than a metaphor: it has specific mathematical foundations. The latter explains how gene regulatory networks produce multiple attractor states, the self-stabilizing patterns of gene activation across the genome that account for "epigenetic memory". This network dynamics approach replaces the reductionist correspondence of molecular epigenetic modifications with concept of the epigenetic landscape, by providing a concrete and crisp correspondence. [less ▲]

Detailed reference viewed: 271 (6 UL)
See detailAdventskalender, Tag 4: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 40 (0 UL)
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See detailThe Defect of Random Hyperspherical Harmonics
Rossi, Maurizia UL

E-print/Working paper (2016)

Detailed reference viewed: 116 (2 UL)
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See detailThe Frobenius theorem for Z^n_2-supermanifolds
Covolo, Tiffany UL; Kwok, Stephen UL; Poncin, Norbert UL

E-print/Working paper (2016)

Detailed reference viewed: 120 (3 UL)
See detail(Universal) Unconditional Verifiability in E-Voting without Trusted Parties
Gallegos-Garcia, Gina; Iovino, Vincenzo UL; Roenne, Peter UL et al

E-print/Working paper (2016)

Detailed reference viewed: 236 (4 UL)
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See detailDifferential Calculus on Z_2^n Supermanifolds
Covolo, Tiffany; Kwok, Stephen UL; Poncin, Norbert UL

E-print/Working paper (2016)

Detailed reference viewed: 132 (14 UL)
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See detailIntegration on colored supermanifolds
Grabowski, Janusz; Kwok, Stephen UL; Poncin, Norbert UL

E-print/Working paper (2016)

Detailed reference viewed: 94 (8 UL)
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Peer Reviewed
See detailBorders : conceptual framework
Roelens, Nathalie UL

E-print/Working paper (2016)

Detailed reference viewed: 143 (2 UL)
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Peer Reviewed
See detailBorderscape as an Interdisciplinary Concept - Compte rendu du colloque
Jeusette, Julien UL

E-print/Working paper (2016)

Detailed reference viewed: 119 (6 UL)
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See detailUntraceable VoIP Communication based on DC-nets
Franck, Christian UL; Sorger, Ulrich UL

E-print/Working paper (2016)

Untraceable communication is about hiding the identity of the sender or the recipient of a message. Currently most systems used in practice (e.g., TOR) rely on the principle that a message is routed via ... [more ▼]

Untraceable communication is about hiding the identity of the sender or the recipient of a message. Currently most systems used in practice (e.g., TOR) rely on the principle that a message is routed via several relays to obfuscate its path through the network. However, as this increases the end-to-end latency it is not ideal for applications like Voice-over-IP (VoIP) communication, where participants will notice annoying delays if the data does not arrive fast enough. We propose an approach based on the paradigm of Dining Cryptographer networks (DC-nets) that can be used to realize untraceable communication within small groups. The main features of our approach are low latency and resilience to packet-loss and fault packets sent by malicious players. We consider the special case of VoIP communication and propose techniques for a P2P implementation. We expose existing problems and sketch possible future large-scale systems composed of multiple groups. [less ▲]

Detailed reference viewed: 155 (7 UL)
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See detailPolitical Economics of Fiscal Consolidations and External Sovereign Accidents
Achury, Carolina; Koulovatianos, Christos UL; Tsoukalas, John

E-print/Working paper (2016)

As the recent chain of EU sovereign crises has demonstrated, after an unexpected massive rise to the debt GDP ratio, several EU countries manage to proceed with fiscal consolidation quickly and ... [more ▼]

As the recent chain of EU sovereign crises has demonstrated, after an unexpected massive rise to the debt GDP ratio, several EU countries manage to proceed with fiscal consolidation quickly and effectively, while other countries, notably Greece, proceed slowly, fueling Graccident and Grexit scenarios, even after generous rescue packages, involving debt haircuts and monitoring from official bodies. Here we recursively formulate a game among rent-seeking groups and propose that high debt-GDP ratios lead to predictable miscoordination among rent-seeking groups, unsustainable debt dynamics, and open the path to political accidents that foretell Graccident scenarios. Our analysis and application helps in under- standing the politico-economic sustainability of sovereign rescues, emphasizing the need for fiscal targets and possible debt haircuts. We provide a calibrated example that quantifies the threshold debt-GDP ratio at 137%, remarkably close to the target set for private sector involvement in the case of Greece. [less ▲]

Detailed reference viewed: 115 (10 UL)
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See detailModel spaces in sub-Riemannian geometry
Grong, Erlend UL

E-print/Working paper (2016)

We consider sub-Riemannian spaces admitting an isometry group that is maximal in the sense that any linear isometry of the horizontal tangent spaces is realized by a global isometry. We will show that ... [more ▼]

We consider sub-Riemannian spaces admitting an isometry group that is maximal in the sense that any linear isometry of the horizontal tangent spaces is realized by a global isometry. We will show that these spaces have a canonical partial connection defined on their horizontal bundle. However, unlike the Riemannian case, such spaces are not uniquely determined by their curvature and their metric tangent cone. Furthermore, the number of invariants needed to determine model spaces with the same tangent cone is in general greater than one. [less ▲]

Detailed reference viewed: 78 (2 UL)
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See detailGreen Consumption and relative preferences in an international ologopoly
Zanaj, Skerdilajda UL; Tarola, Ornella; Ceccantoni, Giulia

E-print/Working paper (2016)

Detailed reference viewed: 45 (0 UL)
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See detailA global description of the fine Simpson moduli space of 1-dimensional sheaves supported on plane quartics
Iena, Oleksandr UL

E-print/Working paper (2016)

A global description of the fine Simpson moduli spaces of 1-dimensional sheaves supported on plane quartics is given: we describe the gluing of the Brill-Noether loci described by Drézet and Maican and ... [more ▼]

A global description of the fine Simpson moduli spaces of 1-dimensional sheaves supported on plane quartics is given: we describe the gluing of the Brill-Noether loci described by Drézet and Maican and show that the Simpson moduli space M=M_{4m±1}(P_2) is a blow-down of a blow-up of a projective bundle over a smooth moduli space of Kronecker modules. An easy computation of the Poincaré polynomial of M is presented. [less ▲]

Detailed reference viewed: 88 (18 UL)
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Peer Reviewed
See detailTax havens compliance with international standards: a temporal perspective
Zanaj, Skerdilajda UL; Pieretti, Patrice UL; pulina, giuseppe

E-print/Working paper (2016)

Detailed reference viewed: 95 (2 UL)
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Peer Reviewed
See detailMalaise in the Western Middle Classes
Chauvel, Louis UL; Hartung, Anne UL

E-print/Working paper (2016)

Detailed reference viewed: 203 (10 UL)
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Peer Reviewed
See detailEurope’s Center of Science: Science Productivity in Belgium, France, Germany, and Luxembourg
Powell, Justin J W UL; Dusdal, Jennifer UL

E-print/Working paper (2016)

European countries have increasingly invested in higher education and science systems, leading to rising numbers of scholars and scientists, considerable infrastructure development, and dense cross ... [more ▼]

European countries have increasingly invested in higher education and science systems, leading to rising numbers of scholars and scientists, considerable infrastructure development, and dense cross-cultural networks and collaboration. The result: significant growth in scientific output and productivity in science, technology, engineering and math (STEM) fields. For four EU member states in Western Europe of different size and institutionalization pathways of science, we assess the development and current state of universities and research institutes, and the resulting science output. We measure output in peer-reviewed research articles collected in Thomson Reuters’ Science Citation Index Expanded (SCIE). Based on a comprehensive historical database, this comparison uncovers both stable and dynamic patterns of productivity from 1975 to 2010 in Germany, France, Belgium, and Luxembourg.[1] This emphasizes different institutionalization pathways that created the conditions necessary for continuous, but varying growth in scientific productivity in the European center of global science. Today, these countries invest considerably in research and development (R&D) and in higher education, the smaller ones doing so through a single national research university (Luxembourg), or a set of strong research universities in different regions (Belgium’s language communities of Flanders and Wallonia). The two larger countries (France and Germany) maintain differentiated systems of universities—of varying size and prestige—and extra-university research institutes that are connected in large umbrella associations or coordinated by government agencies. Rising science productivity reflects considerable state investment, yet the impact of any individual scientific article remains difficult to measure. [less ▲]

Detailed reference viewed: 206 (20 UL)
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See detailHow to discretize the differential forms on the interval
Bandiera, Ruggero; Schätz, Florian UL

E-print/Working paper (2016)

We provide explicit quasi-isomorphisms between the following three algebraic structures associated to the unit interval: i) the commutative dg algebra of differential forms, ii) the non-commutative dg ... [more ▼]

We provide explicit quasi-isomorphisms between the following three algebraic structures associated to the unit interval: i) the commutative dg algebra of differential forms, ii) the non-commutative dg algebra of simplicial cochains and iii) the Whitney forms, equipped with a homotopy commutative and homotopy associative, i.e. C-∞, algebra structure. Our main interest lies in a natural `discretization' C-∞ quasi-isomorphism φ from differential forms to Whitney forms. We establish a uniqueness result that implies that φ coincides with the morphism from homotopy transfer, and obtain several explicit formulas for φ, all of which are related to the Magnus expansion. In particular, we recover combinatorial formulas for the Magnus expansion due to Mielnik and Plebanski. [less ▲]

Detailed reference viewed: 71 (2 UL)
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See detailPoisson cohomology of holomorphic toric Poisson manifolds
Hong, Wei UL

E-print/Working paper (2016)

Detailed reference viewed: 70 (0 UL)
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See detailOptimal Income Taxation for the Alleviation of Working-Poverty When Domestic Work is Rewarded
Chen, Xi; Salagean, Ioana; Zou, Benteng UL

E-print/Working paper (2016)

The increase in income needed for working households to escape relative poverty may be achieved either by households supplying more hours of paid work on the labor market, or by policy makers adjusting ... [more ▼]

The increase in income needed for working households to escape relative poverty may be achieved either by households supplying more hours of paid work on the labor market, or by policy makers adjusting income taxation, minimum wages and social transfers targeted at working households. While past work has given considerable attention to the latter policy instruments, theoretical work on how income taxation could minimize working-poverty is scarce. Our study aims to fill this gap. Unlike the traditional optimal income taxation literature, which considers that households allocate time only between consumption and leisure, we explicitly model households’ decisions as including domestic work, which is a social contribution and should be rewarded. This new framework highlights (i) the importance of emphasizing the difference between domestic work and real leisure and, (ii) the policy implications of non-market time allocation. [less ▲]

Detailed reference viewed: 124 (3 UL)
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See detailWeak poincaré inequality for convolution probability measures
Cheng, Li Juan UL; Zhang, Shao Qin

E-print/Working paper (2016)

In this article, weak Poincaré inequalities are established for convolution measures by using Lyapunov conditions. As applications, these results are further applied to some explicit cases.

Detailed reference viewed: 86 (12 UL)
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See detailDie Karte des luxemburgisch-kurtrierischen Grenzverlaufs aus dem Jahr 1776 – Ein Meisterwerk der Kartographie des späten Ancien Régime und eine faszinierende Quelle für die Landesgeschichte
Uhrmacher, Martin UL

E-print/Working paper (2016)

Das Nationalarchiv hat drei außergewöhnliche Dokumente aus dem Jahr 1776 online gestellt. Hierbei handelt es sich um zwei sehr große Karten (7,1m x 2m ; 3,3m x 2,1m), die den Grenzverlauf zwischen ... [more ▼]

Das Nationalarchiv hat drei außergewöhnliche Dokumente aus dem Jahr 1776 online gestellt. Hierbei handelt es sich um zwei sehr große Karten (7,1m x 2m ; 3,3m x 2,1m), die den Grenzverlauf zwischen Luxemburg und dem Kurfürstentum Trier zeigen. Sie wurden vom Ingenieur Bergé, Oberleutnant der österreichischen Armee, gezeichnet und mit Hilfe des Fotografen Tom Lucas und des Musée Dräi Eechelen digitalisiert. Hinzu kommt ein historisches Dokument von 325 Seiten in dem die auf den Karten abgebildete Grenze in Frage gestellt wird. Beide Karten sind aufgrund ihrer Größe nur schwer einsehbar, stellen aber eine wichtige Quelle für die Geschichte Luxemburgs dar und sind reich an Informationen, Details und Farben. Martin Uhrmacher, Dozent und Forscher an der Universität Luxemburg und Experte auf dem Gebiet der historischen Kartographie, hat beide Karten in diesem Beitrag ausführlich analysiert. [less ▲]

Detailed reference viewed: 246 (7 UL)
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See detailMultiscale hedge ratio between the spot and future prices of carbon: Wavelet Based Approach
Nsouadi, Ange; Terraza, Virginie UL

E-print/Working paper (2016)

Detailed reference viewed: 158 (9 UL)
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Peer Reviewed
See detailModuli stacks of algebraic structures and deformation theory
Yalin, Sinan UL

E-print/Working paper (2016)

Detailed reference viewed: 78 (0 UL)
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See detailWavelet Dynamic Conditional Correlation GARCH model : WDCC-GARCH
Nsaoudi, Ange; Terraza, Virginie UL

E-print/Working paper (2016)

Detailed reference viewed: 144 (4 UL)
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See detailpopulation Aging and Inventive Activity
Irmen, Andreas UL; Litina, Anastasia UL

E-print/Working paper (2016)

This research empirically establishes and theoretically motivates the hypothesis that population aging has a hump-shaped effect on inventive activity. We estimate this hump-shaped relationship in a panel ... [more ▼]

This research empirically establishes and theoretically motivates the hypothesis that population aging has a hump-shaped effect on inventive activity. We estimate this hump-shaped relationship in a panel of 33 OECD countries over the period 1960-2012. The increasing part of the hump captures the awareness that population aging requires inventive activity to guarantee current and future standards of living. The decreasing part reflects the tendency of aging societies to lose dynamism and the willingness to take risks. Policy-wise our analysis suggests that raising the awareness of individuals about the consequences of population aging may facilitate the adoption of strategies and policies encouraging inventive activity and economic growth. [less ▲]

Detailed reference viewed: 119 (3 UL)
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See detailEndogenous Factor Income Distribution - When Piketty meets Romer -
Irmen, Andreas UL; Tabakovic, Amer UL

E-print/Working paper (2016)

We scrutinize Thomas Piketty’s (2014) theory concerning the relationship between an economy’s long-run growth rate, its capital-income ratio, and its factor income distribution put forth in his recent ... [more ▼]

We scrutinize Thomas Piketty’s (2014) theory concerning the relationship between an economy’s long-run growth rate, its capital-income ratio, and its factor income distribution put forth in his recent book Capital in the Twenty-First Century. We find that a smaller long-run growth rate may be associated with a smaller capital-income ratio. Hence, the key implication of Piketty’s Second Fundamental Law of Capitalism does not hold. In line with Piketty’s theory a smaller long-run growth rate may go together with a greater capital share. However, the mechanics behind this result are the opposite of what Piketty suggests. Our findings obtain in variants of Romer’s (1990) seminal model of endogenous technological change. Here, both the economy’s savings rate and its growth rate are endogenous variables whereas in Piketty’s theory they are both exogenous parameters. Including demographic growth in the spirit of Jones (1995) shows that a smaller growth rate of the economy may imply a lower capital share contradicting a central claim in Piketty’s book. [less ▲]

Detailed reference viewed: 141 (10 UL)
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See detailLearning Tuple Probabilities
Dylla, Maximilian; Theobald, Martin UL

E-print/Working paper (2016)

Detailed reference viewed: 111 (22 UL)
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See detailDistributed Processing of Generalized Graph-Pattern Queries in SPARQL 1.1
Gurajada, Sairam; Theobald, Martin UL

E-print/Working paper (2016)

Detailed reference viewed: 82 (7 UL)
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See detailSecurity Analysis of the Drone Communication Protocol: Fuzzing the MAVLink protocol
Domin, Karel; Symeonidis, Iraklis UL; Marin, Eduard

E-print/Working paper (2016)

The MAVLink protocol, used for bidirectional communication between a drone and a ground control station, will soon become a worldwide standard. The protocol has been the subject of research many times ... [more ▼]

The MAVLink protocol, used for bidirectional communication between a drone and a ground control station, will soon become a worldwide standard. The protocol has been the subject of research many times before. Through this paper, we introduce the method of fuzzing as a complementing technique to the other research, to find vulnerabilities that have not been found before by different techniques. The goal is to identify possible vulnerabilities in the protocol implementation in order to make it more secure. [less ▲]

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See detailGemeinwesenarbeit als relationale skalierungssensible Örtlichkeitsarbeit
Uhler, Nicolas; Haas, Claude UL; Marthaler, Thomas UL

E-print/Working paper (2016)

Detailed reference viewed: 187 (9 UL)
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See detailIncome Effects and Vertical Differentiation in International Trade
Picard, Pierre M UL; Tampieri, Alessandro

E-print/Working paper (2016)

We analyse a trade model with non-homothetic preferences and different quality ver- sions of each product. Income effects drive the quality composition of consumption, pro- duction and trade flows. We ... [more ▼]

We analyse a trade model with non-homothetic preferences and different quality ver- sions of each product. Income effects drive the quality composition of consumption, pro- duction and trade flows. We show that a rise in local population fosters local asymmetric specialization in high-quality production and exports while it harms low income groups. By contrast, an increase in local productivity may generate specialization in high quality production, which in turn may trigger an immiserizing growth process. Weaker compa- rative advantages induce firm to move and make a local productivity improvement more likely to increase production of higher quality goods everywhere. [less ▲]

Detailed reference viewed: 138 (12 UL)
Peer Reviewed
See detailTurkish Immigration Politics and the Syrian Refugee Crisis
Hoffmann, Sophia; Samuk, Sahizer UL

E-print/Working paper (2016)

Detailed reference viewed: 158 (1 UL)
See detailAdventskalender, Tag 13: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 37 (0 UL)
See detailAdventskalender, Tag 18: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 37 (0 UL)
See detailAdventskalender, Tag 16: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 38 (0 UL)
See detailAdventskalender, Tag 14: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 31 (0 UL)
See detailAdventskalender, Tag 21: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 36 (0 UL)
See detailAdventskalender, Tag 19: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 12: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 36 (0 UL)
See detailAdventskalender, Tag 24: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 23: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 10: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 20: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 15: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 22: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 7: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailDecolonisation: geopolitical issues and impact on the European integration process
Mouton, Victoria UL; Gabellini, Marco UL; et al.

E-print/Working paper (2016)

The ePublication ‘Decolonisation: geopolitical issues and impact on the European integration process’ explores the key moments in the disintegration of the European colonial empires, with a particular ... [more ▼]

The ePublication ‘Decolonisation: geopolitical issues and impact on the European integration process’ explores the key moments in the disintegration of the European colonial empires, with a particular emphasis on French and British decolonisation, and looks at how this process of decolonisation influenced the European integration process. The ePublication begins by outlining the main stages in decolonisation after 1945, illustrated by specific examples. The Cold War and the increasing international condemnation of colonialism provided conditions that were ripe for indigenous peoples to gradually loosen the ties binding them to a Europe that was drained and in ruins following the Second World War. At the same time, the creation of the European Community forced the European powers to reconcile their overseas and European policies. The emergence of Third-World countries in the international arena changed relations between Europe and its (former) colonies and raised the question of a Community development aid policy. This ePublication therefore goes on to examine the debates that led in 1957 to the association of the overseas countries and territories (OCTs) with the European Economic Community (EEC), then to the signing of the Yaoundé Convention in 1963 and the Lomé Convention in 1975. A particular strength of the ePublication is the compilation and analysis of a rich, varied selection of more than 700 resources, including archive documents, press articles, correspondence, extracts from memoirs, photos and cartoons. [less ▲]

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See detailAdventskalender, Tag 8: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

Detailed reference viewed: 32 (0 UL)
See detailAdventskalender, Tag 11: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 6: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 17: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailAdventskalender, Tag 9: Gedanken und Wünsche für Hochbegabte.
Baudson, Tanja Gabriele UL

E-print/Working paper (2016)

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See detailPRESS FREEDOM AND JUMPS IN STOCK PRICES
Abed Masror Khah, Sara UL; Lehnert, Thorsten UL

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 ▲]

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See detailFrontaliers atypiques dans la Grande-Région SaarLorLux
Wille, Christian UL; Helfer, Malte UL; Caruso, Geoffrey UL et al

E-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 ▲]

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See detailLes Parcs naturels dans la Grande Région SaarLorLux
Deshaies, Michel; Caruso, Geoffrey UL; Helfer, Malte UL et al

E-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 ▲]

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See detailPossessions en prêt au Haut Moyen Âge des Abbayes de Gorze et Wissembourg, de 661 à environ 860
Kasten, Brigitte; Schäfer, Jens; Helfer, Malte UL et al

E-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 ▲]

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See detailSites du patrimoine mondial de l'UNESCO dans la Grande Région SaarLorLux
Mendgen, Eva; Helfer, Malte UL; Pauly, Michel UL et al

E-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 ▲]

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See detailHybrid mesh/particle meshless method for modeling geological flows with discontinuous transport properties
Bourantas, Georgios UL; Lavier, Luc; van Dam, Tonie UL et al

E-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 ▲]

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See detailKrichever-Novikov type algebras and Wess-Zumino-Witten models
Schlichenmaier, Martin UL

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 ▲]

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See detailOn four Koszul-Tate resolutions
Pistalo, Damjan UL; Poncin, Norbert UL

E-print/Working paper (2015)

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See detailAuswertung der Selbstevaluation des IDENT2-Projekts (2011-2014)
Reckinger, Rachel UL

E-print/Working paper (2015)

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See detailArbeitszufriedenheit der Arbeitnehmer in Luxemburg
Sischka, Philipp UL; Steffgen, Georges UL

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 ▲]

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See detailValuing American options using fast recursive projections
Cosma, Antonio UL; Galluccio, Stefano; Pederzoli, Paola et al

E-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 ▲]

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See detailLet's Talk Business: The Economic Impact of Brexit
Herzog, Mechthild UL

E-print/Working paper (2015)

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See detailVictimization and Safety in Luxembourg - Findings of the "Enquête sur la sécurité 2013"
Heinz, Andreas UL; Steffgen, Georges UL; Willems, Helmut UL

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 ▲]

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See detailDesperately Seeking Small Worlds in Corporate Boards: International Evidence from Listed Firms
Hamadi, Malika; Heinen, Andreas; Jonard, Nicolas UL et al

E-print/Working paper (2015)

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See detailThe Demand for Diversification in Incomplete Markets
Mehra, Rajnish UL; Wahal, Sunil; Xie, Daruo

E-print/Working paper (2015)

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See detailN point Virasoro algebras considered as Krichever-Novikov type algebras
Schlichenmaier, Martin UL

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 ▲]

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See detailFinancing Patterns of European SMEs: An Empirical Taxonomy
Moritz, Alexandra; Block, Joern; Heinz, Andreas UL

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 ▲]

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See detailProps of ribbon graphs, involutive Lie bialgebras and moduli spaces of curves M_g,n
Merkulov, Sergei UL; Willwacher, Thomas

E-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 ▲]

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See detailInflation Aversion in the European Union: Exploring the Myth of a North-South Divide
Howarth, David UL; Rommerskirchen, Charlotte

E-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 ▲]

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See detailAssessing and Improving the Mutation Testing Practice of PIT
Laurent, Thomas; Ventresque, Anthony; Papadakis, Mike UL et al

E-print/Working paper (2015)

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See detailCentrality of regions in R&D networks: Conceptual clarifications and a new measure
Berge, Laurent UL; Wanzenböck, Iris; Scherngell, Thomas

E-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 ▲]

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See detailA Polyakov formula for sectors
Aldana Dominguez, Clara Lucia UL; Rowlett, Julie

E-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 ▲]

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See detailWeyl type quantization for some symplectic symmetric spaces
Korvers, Stéphane UL

E-print/Working paper (2015)

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See detailAdelic openness without the Mumford-Tate conjecture
Hui, Chun Yin UL; Larsen, Michael

E-print/Working paper (2015)

Detailed reference viewed: 59 (1 UL)
See detailOn rationality of certian type A Galois representations
Hui, Chun Yin UL

E-print/Working paper (2015)

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See detailOn the Distribution of Frobenius of Weight 2 Eigenforms with Quadratic Coefficient Field
Van Hirtum, Jasper UL

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 ▲]

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See detailRemittance and Migration Prospects for the Twenty-First Century
Machado Carneiro, Joël UL; Docquier, Frédéric

E-print/Working paper (2015)

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See detailAirport Congestion and Inefficiency in Slot Allocation
Picard, Pierre M UL; Tampieri, Alessandro UL; Wan, Xi

E-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 ▲]

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See detailThe Comparative Political Economy of Basel III
Howarth, David UL; Quaglia, Lucia UL

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 ▲]

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See detail8pi-periodic Josephson effect in time-reversal invariant interacting Rashba nanowires
Pedder, Christopher UL; Meng, Tobias; Tiwari, Rakesh et al

E-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 ▲]

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See detailThe Pessimism Factor: SEC EDGAR Form 10-K Textual Analysis and Stock Returns
Chouliaras, Andreas UL

E-print/Working paper (2015)

Detailed reference viewed: 108 (0 UL)
See detailTriple-A rating? Juncker's vision for the EU's social policy scorecard
Herzog, Mechthild UL

E-print/Working paper (2015)

Detailed reference viewed: 63 (2 UL)
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See detailN-point Virasoro algebras are multi-point Krichever--Novikov type algebras
Schlichenmaier, Martin UL

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 ▲]

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See detailPension insecurity and well-being in Europe
Olivera Angulo, Javier UL; Ponomarenko, Valentina UL

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 ▲]

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See detailWell-being differences in old-age in Europe: the Active Ageing Index by cohorts
Olivera Angulo, Javier UL

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 ▲]

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See detailZur Bedeutung der Tiermetaphorik in der Verschränkung von Ökonomie & Gender bei Jelinek
Bloch, Natalie UL; Pelka, Artur

E-print/Working paper (2015)

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See detailTrade Credit and firm Comovements
Pisa, Magdalena UL; Bos, Jaap; Bams, Dennis

E-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: 61 (2 UL)