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See detailOffshore financial centers: Tax havens or safe havens
Thisse, Jacques; Pieretti, Patrice UL; Zanaj, Skerdilajda UL

E-print/Working paper (2013)

Detailed reference viewed: 169 (3 UL)
See detailPopulation, Pensions, and Endogenous Economic Growth
Heer, Burkhard; Irmen, Andreas UL

E-print/Working paper (2013)

We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme ... [more ▼]

We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme. When labor is scarcer it becomes more expensive and innovation investments that increase labor productivity are more profitable. We incorporate this channel in a new dynamic general equilibrium model with endogenous economic growth and heterogeneous overlapping generations. We calibrate the model for the US economy and obtain the following results. First, the effect of a decline in population growth on labor productivity growth is positive and quantitatively significant. In our benchmark, it is predicted to increase from an average annual growth rate of 1.74% over 1990-2000 to 2.41% in 2100. Second, institutional characteristics of the pension system matter both for the growth performance and for individual welfare. Third, the assessment of pension reform proposals may depend on whether economic growth is endogenous or exogenous. [less ▲]

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See detailDifferential Game with (A)symmetric Players and Heterogeneous Strategies
Zou, Benteng UL

E-print/Working paper (2013)

This paper presents one kind of heterogeneous strategies in some differential games where one player plays open-loop strategy and the other one plays Markovian strategy. On top of the stationary path ... [more ▼]

This paper presents one kind of heterogeneous strategies in some differential games where one player plays open-loop strategy and the other one plays Markovian strategy. On top of the stationary path, this kind of strategies enable the study of trajectory dynamics, even for asymmetric players’ with non-linear-quadratic games. [less ▲]

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See detailThe Dynamics of the Location of Firms– A Revisit of Home-Attachment under Tax Competition
Han, Yutao UL; Pieretti, Patrice UL; Zou, Benteng UL

E-print/Working paper (2013)

We revisit the investment home-bias situation of firms and extend the home attachment setting of Mansoorian and Myers (1993) and Ogura (2006) into a dynamic framework. We locate firms based on their home ... [more ▼]

We revisit the investment home-bias situation of firms and extend the home attachment setting of Mansoorian and Myers (1993) and Ogura (2006) into a dynamic framework. We locate firms based on their home attachment preferences, which is also changing over time based on some updated spillover information. Some applications, in static and dynamic tax competition, are presented following our home-attachment principle. [less ▲]

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See detailThreshold Preferences and the Environment
Schumacher, Ingmar; Zou, Benteng UL

E-print/Working paper (2013)

In this article we study the implication of thresholds in preferences. To model this we extend the basic model of John and Pecchenino (1994) by allowing the current level of environmental quality to have ... [more ▼]

In this article we study the implication of thresholds in preferences. To model this we extend the basic model of John and Pecchenino (1994) by allowing the current level of environmental quality to have a discrete impact on how an agent trades o future consumption and environmental quality. In other words, we endogenize the semi-elasticity of utility based on a step function. We motivate the existence of the threshold based on research from political science, from arguments based on regulation and standards, cultural economics as well as ecological economics. Our results are that the location of the threshold determines both the potential steady states as well as the dynamics. For low (high) thresholds, environmental quality converges to a low (high) steady state. For intermediate levels it converges to a stable p-cycle, with environmental quality being asymptotically bounded below and above by the low and high steady state. We discuss implications for intergenerational equity and policy making. As policy implications we study shifts in the threshold. Our results are that, in case it is costless to shift the threshold, it is always worthwhile to do so. If it is costly to change the threshold, then it is worthwhile to change the threshold if the threshold originally was suffi ciently low. Lump-sum taxes may lead to a development trap and should be avoided if there are uncertainties about the threshold or the effectiveness of the policy. [less ▲]

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See detailOn the desirability of tax coordination when countries compete in taxes and infrastructures
Han, Yutao UL; Pieretti, Patrice UL; Zou, Benteng UL

E-print/Working paper (2013)

In our paper we show that when countries compete in taxes and infrastructures, coordination through a uniform tax rate or a minimum rate does not necessarily create the welfare effects observed under pure ... [more ▼]

In our paper we show that when countries compete in taxes and infrastructures, coordination through a uniform tax rate or a minimum rate does not necessarily create the welfare effects observed under pure tax competition. The divergence is even worse when the competing jurisdictions differ in the quality of their institutions. If tax revenue is used to gauge the desirability of coordination, our model shows that imposing a uniform tax rate is Pareto-inferior to the non cooperative equilibrium when countries compete in taxes and infrastructures. This result is completely reversed with pure tax competition if countries are not too uneven in size. If a minimum tax rate lying between those resulting from the non-cooperative equilibrium is set, the low tax country will never be better off. Finally the paper shows that the potential social welfare gains from tax harmonization crucially depend on how heterogeneous the competing countries are. [less ▲]

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See detailParametric Stein operators and variance bounds
Ley, Christophe; Swan, Yvik UL

E-print/Working paper (2013)

Stein operators are differential operators which arise within the so-called Stein's method for stochastic approximation. We propose a new mechanism for constructing such operators for arbitrary ... [more ▼]

Stein operators are differential operators which arise within the so-called Stein's method for stochastic approximation. We propose a new mechanism for constructing such operators for arbitrary (continuous or discrete) parametric distributions with continuous dependence on the parameter. We provide explicit general expressions for location, scale and skewness families. We also provide a general expression for discrete distributions. For specific choices of target distributions (including the Gaussian, Gamma and Poisson) we compare the operators hereby obtained with those provided by the classical approaches from the literature on Stein's method. We use properties of our operators to provide upper and lower variance bounds (only lower bounds in the discrete case) on functionals h(X) of random variables X following parametric distributions. These bounds are expressed in terms of the first two moments of the derivatives (or differences) of h. We provide general variance bounds for location, scale and skewness families and apply our bounds to specific examples (namely the Gaussian, exponential, Gamma and Poisson distributions). The results obtained via our techniques are systematically competitive with, and sometimes improve on, the best bounds available in the literature. [less ▲]

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See detailRates of convergence towards the Fréchet distribution
Bartholmé, Carine; Swan, Yvik UL

E-print/Working paper (2013)

We develop Stein's method for the Frechet distribution and apply it to compute rates of convergence in distribution of renormalized sample maxima to the Frechet distribution.

Detailed reference viewed: 64 (0 UL)
See detailFast reconstruction of compact context-specific metabolic network models
Vlassis, Nikos UL; Pacheco, Maria UL; Sauter, Thomas UL

E-print/Working paper (2013)

Systemic approaches to the study of a biological cell or tissue rely increasingly on the use of context-specific metabolic network models. The reconstruction of such a model from high-throughput data can ... [more ▼]

Systemic approaches to the study of a biological cell or tissue rely increasingly on the use of context-specific metabolic network models. The reconstruction of such a model from high-throughput data can routinely involve large numbers of tests under different conditions and extensive parameter tuning, which calls for fast algorithms. We present FASTCORE, a generic algorithm for reconstructing context-specific metabolic network models from global genome-wide metabolic network models such as Recon X. FASTCORE takes as input a core set of reactions that are known to be active in the context of interest (e.g., cell or tissue), and it searches for a flux consistent subnetwork of the global network that contains all reactions from the core set and a minimal set of additional reactions. Our key observation is that a minimal consistent reconstruction can be defined via a set of sparse modes of the global network, and FASTCORE iteratively computes such a set via a series of linear programs. Experiments on liver data demonstrate speedups of several orders of magnitude, and significantly more compact reconstructions, over a chief rival method. Given its simplicity and its excellent performance, FASTCORE can form the backbone of many future metabolic network reconstruction algorithms. [less ▲]

Detailed reference viewed: 146 (15 UL)
See detailA complete classification of equational classes of threshold functions included in clones
Couceiro, Miguel; Lehtonen, Erkko UL; Schölzel, Karsten UL

E-print/Working paper (2013)

The class of threshold functions is known to be characterizable by functional equations or, equivalently, by pairs of relations, which are called relational constraints. It was shown by Hellerstein that ... [more ▼]

The class of threshold functions is known to be characterizable by functional equations or, equivalently, by pairs of relations, which are called relational constraints. It was shown by Hellerstein that this class cannot be characterized by a finite number of such objects. In this paper, we investigate classes of threshold functions which arise as intersections of the class of all threshold functions with clones of Boolean functions, and provide a complete classification of such intersections in respect to whether they have finite characterizations. Moreover, we provide a characterizing set of relational constraints for each class of threshold functions arising in this way. [less ▲]

Detailed reference viewed: 100 (3 UL)
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See detailExtending functions to natural extensions
Teheux, Bruno UL; Hansoul, Georges

E-print/Working paper (2013)

Detailed reference viewed: 78 (1 UL)
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See detailIndex of Personnalities Names_Research corpus 'A rereading of the Werner Report of 8 October 1970 in the light of the Pierre Werner family archives'
Danescu, Elena UL; Mouton, Victoria UL

E-print/Working paper (2013)

This Index of Personnalities with their short biographie is an output of the major research project dedicated to the European vocation and achievements of Pierre Werner, a former Prime Minister, Finance ... [more ▼]

This Index of Personnalities with their short biographie is an output of the major research project dedicated to the European vocation and achievements of Pierre Werner, a former Prime Minister, Finance Minister and Foreign Minister of Luxembourg, unanimously recognised as one of the architects of Economic and Monetary Union. The first stage of the research was particularly focused on the plan for the establishment by stages of an economic and monetary union (more widely known as the Werner Report or the Werner Plan), drawn up by a group of experts chaired by Pierre Werner and officially presented on 8 October 1970 in Luxembourg. [less ▲]

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See detailSpatial Segregation and Urban Structure
Picard, Pierre M. UL; Mossay, Pascal

E-print/Working paper (2013)

In this paper, we study social interactions between two populations of individuals living in a city. Agents consume land and benefit from intra- and inter-group social interactions. We show that in ... [more ▼]

In this paper, we study social interactions between two populations of individuals living in a city. Agents consume land and benefit from intra- and inter-group social interactions. We show that in equilibrium segregation arises: populations get separated in distinct spatial neighborhoods. Two- and three-district urban structures are characterized. For high population ratios or strong inter-group interactions, only a three-district city exists. In other cases, multiplicity of equilibria arises. Moreover, for sufficiently low population ratios or very weak inter-group interactions, all individuals agree on which spatial equilibrium is best. [less ▲]

Detailed reference viewed: 136 (14 UL)
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See detailUpside down with the strong partial clones
Schölzel, Karsten UL

E-print/Working paper (2013)

Detailed reference viewed: 44 (5 UL)
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See detailExtensive and intensive margins and the choice of exchange rate regimes
Hamano, Masashige UL

E-print/Working paper (2013)

This paper studies how the choice of xed or exible exchange rate regimes is a¤ected by the existence of intensive and extensive margins. We study two models where rms enter during or before each period of ... [more ▼]

This paper studies how the choice of xed or exible exchange rate regimes is a¤ected by the existence of intensive and extensive margins. We study two models where rms enter during or before each period of production. We show how the choice of those regimes depend on the level and the volatily of the intensive and extensive margins as well as on the congruence between consumers preferences and the supply and diversity of products. We show that xed exchange rate regimes are preferred for high enough labor supply elasticities. Fixed exchange rate regimes are unambigously better when entry occurs at the same time as production in each period. Fixed exchange rate regimes are less attractive in the presence of production lags and higher love of product diversity. [less ▲]

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See detailMacroeconomic Foundations of Financial Predictability
Mehra, Rajnish UL; Donaldson, J.B.

E-print/Working paper (2013)

Detailed reference viewed: 148 (9 UL)
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See detailÉvolution de l'activité professionnelle selon l'âge, le sexe et la nationalité, 2001 - 2011 - Entwicklung der Erwerbstätigkeit nach Alter, Geschlecht und Nationalität
Heinz, Andreas UL; Peltier, François; Thill, Germaine et al

E-print/Working paper (2012)

Between the 2001 and the 2011 censuses, the part of the persons in employment in the total population decreased slightly from 43.9 % to 43.2 %. For men this recoil was more important. The percentage of ... [more ▼]

Between the 2001 and the 2011 censuses, the part of the persons in employment in the total population decreased slightly from 43.9 % to 43.2 %. For men this recoil was more important. The percentage of the men in employment passed from 52.2 % to 48.3 % of the total of the male population. The part of the women in employment on the other hand, increased from 35.7 % of the female population in 2001 to 38.2 % in 2011. However, in all the age groups, the men remain more numerous to be in employment than the women. The age of the beginning of the professional life increased, but the active life is also longer and this especially for women. The foreigners are relatively more numerous to be in employment (48.5 % of the foreign population) than the Luxembourgers (39.5 % of the Luxembourgish population). In medium age groups, the employment rates of the Luxembourgers are however higher than those of the foreigners. On the other hand, the foreigners are proportionally more numerous to be in employment at more advanced ages than the Luxembourgers. [less ▲]

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See detailThe Home market effect with heterogeneous firms
Nguyen, Ha Manh UL

E-print/Working paper (2012)

This paper examines the home market effect in the framework of heterogeneous firms. The paper finds that not only trade costs but also fixed trade costs cause the home market effect and the reverse home ... [more ▼]

This paper examines the home market effect in the framework of heterogeneous firms. The paper finds that not only trade costs but also fixed trade costs cause the home market effect and the reverse home market effect can occur as the fixed trade costs are very low. In addition, the agnitude of the home market effect varies with industry characteristics. Industries with low trade costs, high fixed production costs, low fixed export costs, and high productivity dispersion tend to be more concentrated in large countries. Finally, the negative impact of trade barriers on the home market effect is dampened by the elasticity of substitution which is contrary with the result of the homogeneous firm model. An empirical model is built to test these predictions for developed countries. The empirical results are consistent with the predictions of the theoretical model. [less ▲]

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See detailActivité professionnelle et inactivité - Erwerbstätigkeit und Nichterwerbstätigkeit
Heinz, Andreas UL; Peltier, François; Thill, Germaine et al

E-print/Working paper (2012)

The residents who perform a professional function are considered as "active". Unpaid family workers and part-time employed persons also belong to this category. From 2001 to 2011, the part of working ... [more ▼]

The residents who perform a professional function are considered as "active". Unpaid family workers and part-time employed persons also belong to this category. From 2001 to 2011, the part of working people in the population decreased slightly from 43.9% to 43.2%. The part of persons exclusively occupied in their own household fell by 14.1% in 2001 to 8.8% in 2011. The part of unemployed persons, pupils and students has increased. Regarding gender, men are more likely to be active or retired, while women are relatively more likely to be occupied in their own household. Residents of foreign nationality are, in relative terms, more often active or unemployed than Luxembourgers who are more often in training or already in pension. These characteristics are partly due to the different age structure of the Luxembourgish and foreign population. [less ▲]

Detailed reference viewed: 289 (146 UL)
See detailProtection of the Content of a 'Wiki' Database under the European Database Directive
Schmitz, Sandra UL

E-print/Working paper (2012)

Detailed reference viewed: 124 (6 UL)
See detailPolitical and Cultural Impacts of Inequality
van de Werfhorst, Herman; György Tóth, István; Horn, Dániel et al

E-print/Working paper (2012)

Detailed reference viewed: 62 (6 UL)
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See detailLa population par nationalité (2)
Peltier, François; Thill, Germaine; Heinz, Andreas UL et al

E-print/Working paper (2012)

On 1st February 2011, 59.8% of residents were born in Luxembourg (306 221 persons). With 85.6%, the big majority of these people are Luxembourgish. Three-quarters (74.2%) of foreign-born living in ... [more ▼]

On 1st February 2011, 59.8% of residents were born in Luxembourg (306 221 persons). With 85.6%, the big majority of these people are Luxembourgish. Three-quarters (74.2%) of foreign-born living in Luxembourg have another nationality of the European Union, while 14.1% have the Luxembourgish nationality. 41.5% (+- 85 000 people) of the people born abroad arrived in the past 10 years. At the time of the census, 42,465 people were naturalized. Portuguese and Italians are the more numerous to have acquired the Luxembourgish nationality. If 20.2% of naturalized citizen have at least a second nationality (8 557 individuals), only 2.7% of Luxembourgish Birth (6 736 people) have at least a second nationality. Relating to the socio-economic status and the household size, significant differences are observed between Luxembourgish and foreigners. The share of Luxembourgish having a job is 39.5%, while for foreigners it is about 48.5%. If 16.6% of Luxembourgish are retired, they are only 8.4% among foreigners. The average household size is larger for foreigners (2.54) than Luxembourgish households (2.32). [less ▲]

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See detailModularity of certain mod p^n Galois representations
Adibhatla, Rajender UL

E-print/Working paper (2012)

For a rational prime $p \geq 3$ and an integer $n \geq 2$, we study the modularity of continuous $2$-dimensional mod $p^n$ Galois representations of $\Gal(\overline{\Q}/\Q)$ whose residual representations ... [more ▼]

For a rational prime $p \geq 3$ and an integer $n \geq 2$, we study the modularity of continuous $2$-dimensional mod $p^n$ Galois representations of $\Gal(\overline{\Q}/\Q)$ whose residual representations are odd and absolutely irreducible. Under suitable hypotheses on the local structure of these representations and the size of their images we use deformation theory to construct characteristic $0$ lifts. We then invoke modularity lifting results to prove that these lifts are modular. As an application, we show that certain unramified mod $p^n$ Galois representations arise from modular forms of weight $p^{n-1}(p-1)+1$. [less ▲]

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See detailComparing spelling and segmentation practices in three versions of a Mandinka text
Juffermans, Kasper UL; Veldhuis, Dorina

E-print/Working paper (2012)

Detailed reference viewed: 57 (0 UL)
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See detailHarmony as language policy in China: An internet perspective
Wang, Xuan; Juffermans, Kasper UL; Du, Caixia

E-print/Working paper (2012)

This paper provides an ethnographic understanding of harmony as language policy in China. We ground this understanding in a historical analysis of ‘harmony’ as a distinct traditional Chinese ideal that ... [more ▼]

This paper provides an ethnographic understanding of harmony as language policy in China. We ground this understanding in a historical analysis of ‘harmony’ as a distinct traditional Chinese ideal that gradually finds its new expressions through policy in contemporary China. Based on this, we will focus particularly on language practices surrounding ‘harmony’ that are emerging from the Internet, a discursive space and site of policing that is highly diverse while also heavily contested with respect to policing processes, and notably so in the context of the PRC for its stringent measurement of censorship and sensitization of language use. From this perspective of the Internet, we will show empirically that although the state is arguably the strongest stakeholder in implementing the policy of harmony – or, better, harmonization – in the case of China, the actual processes of harmonization through policing online develop in detailed, multidirectional and unpredictable rather than abstract, linear or monofocal ways. The outcomes of such processes are, paradoxically, alternative ideologies of harmony as well as nonnormative use of language. The general implications to language policy will also be discussed. [less ▲]

Detailed reference viewed: 154 (1 UL)
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See detailLEARN stellt sech fier
Engel de Abreu, Pascale UL; Schiltz, Christine UL; Hoffmann, Danielle UL et al

E-print/Working paper (2012)

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See detailLa population par nationalité (1)
Peltier, François; Thill, Germaine; Heinz, Andreas UL et al

E-print/Working paper (2012)

Since the 2001 census, the foreign population has increased by nearly 35%. The 1st February 2011, there were 220 522 foreigners equivalent to 43.04% of the total population. People from the EU-27 ... [more ▼]

Since the 2001 census, the foreign population has increased by nearly 35%. The 1st February 2011, there were 220 522 foreigners equivalent to 43.04% of the total population. People from the EU-27 countries (except Luxembourg) represent 37.41% of the resident population and nearly 87% of the foreign population living in the Grand Duchy. The Portuguese nationality is the first foreign nationality in the country with 82 363 individuals (16.08% of the total population). The increase of Luxembourgish is much less pronounced. On February 1st 2011, there were 291 831 persons with Luxembourgish nationality, that is to say an increase of 5.26% in comparison to 2001. The native people from Luxembourg constitute 48.67% of the total population. The average age for foreigners in Luxembourg is around 35 years, and is 6 years younger compared to Luxembourgish individuals. Foreign persons live mostly in the Centreor in the South of the country, but the growth of the number of foreigners in the last decade was higher in the Northern area than in other regions. [less ▲]

Detailed reference viewed: 366 (163 UL)
See detailThe Division of Parental Transfers in Europe
Olivera Angulo, Javier UL

E-print/Working paper (2012)

In this paper we explore the patterns of the division of inter-vivos financial transfers from parents to adult children in a sample of 12 European countries. We exploit two waves of the Survey of Health ... [more ▼]

In this paper we explore the patterns of the division of inter-vivos financial transfers from parents to adult children in a sample of 12 European countries. We exploit two waves of the Survey of Health, Aging, and Retirement in Europe (SHARE) for 50+. Contrary to previous studies, we find a higher frequency of parents dividing equally their transfers. We argue that altruistic parents are also concerned with norms of equal division, and hence don’t fully offset child income differences. The parents start to give larger transfers to poorer children if the child income inequality becomes unbearable from the parent’s view. We find econometric evidence suggesting this behaviour under different specifications and strategies. Furthermore, contextual variables like the gini coefficient and pension expenditures help to explain country differences with respect to the division of inter-vivos transfers. The lower frequency of equal division found in studies with American data may respond to the higher inequality and relatively lower pension expenditures in US. [less ▲]

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See detail"Making of" du recensement général de la population au 1er février 2011
Thill, Germaine; Peltier, François; Heinz, Andreas UL et al

E-print/Working paper (2012)

Cette publication est la première d’une sérié, réali-sée conjointement par le STATEC et l’Université du Luxembourg/INSIDE (Integrative Research Unit on Social and Individual Development), présentant au ... [more ▼]

Cette publication est la première d’une sérié, réali-sée conjointement par le STATEC et l’Université du Luxembourg/INSIDE (Integrative Research Unit on Social and Individual Development), présentant au public intéressé les résultats du recensement de la population de 2011. Au 1er février 2011 s’est déroulé le 36e recensement de la population au Grand-Duché de Luxembourg. Pendant plusieurs semaines, 2 157 agents recen-seurs, nommés par les communes, ont distribué et collecté les questionnaires auprès des ménages. Ces ménages avaient, pour la première fois, la pos-sibilité de remplir leur questionnaire par Internet. 512 353 personnes ont été recensées comme rési-dantes. [less ▲]

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See detailL’évolution de la population - Die Entwicklung der Bevölkerung
Heinz, Andreas UL; Thill, Germaine; Peltier, François et al

E-print/Working paper (2012)

Depuis le recensement de 2001, la population a augmenté de 72 814 unités pour atteindre, au 1er février 2011, le nombre de 512 353 habitants, ce qui correspond à une croissance annuelle moyenne de 1.5 ... [more ▼]

Depuis le recensement de 2001, la population a augmenté de 72 814 unités pour atteindre, au 1er février 2011, le nombre de 512 353 habitants, ce qui correspond à une croissance annuelle moyenne de 1.5%. L’âge moyen de la population est de 38.7 ans, c’est-à-dire 1.2 an de plus qu’en 2001. Pour re-présenter l’importance relative des différents groupes d’âge, on peut calculer le rapport de dé-pendance des jeunes et le rapport de dépendance des personnes âgées. Le rapport de dépendance des jeunes indique le nombre d’enfants et de jeu-nes entre 0 et 14 ans pour 100 personnes âgées de 15 à 64 ans. Ce rapport a diminué en passant de 28.2% en 2001 à 25.2% en 2011. Le rapport de dé-pendance des personnes âgées indique le nombre de personnes de 65 ans et plus rapporté à 100 per-sonnes ayant entre 15 et 64 ans. Ce rapport a bais-sé légèrement de 20.7% en 2001 à 20.4% en 2011. Toutefois, en termes de structure par âge, il y a des différences régionales et locales assez importantes. Ainsi, l’âge moyen varie de 34.2 à 42.9 ans selon les communes. [less ▲]

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See detailLa répartition géographique de la population - Die räumliche Verteilung der Bevölkerung
Heinz, Andreas UL; Thill, Germaine; Peltier, François et al

E-print/Working paper (2012)

Au 1er février 2011, 512 353 personnes vivaient au Luxembourg. Les habitants du Grand-Duché se répartissent inégalement sur les différentes unités territoriales : le plus grand district a 6 fois plus ... [more ▼]

Au 1er février 2011, 512 353 personnes vivaient au Luxembourg. Les habitants du Grand-Duché se répartissent inégalement sur les différentes unités territoriales : le plus grand district a 6 fois plus d’habitants que le plus petit, le plus grand canton a 34 fois plus d’habitants que le plus petit et la plus grande commune en a 295 fois plus que la plus petite. Cette situation résulte d’un développement qui s’est déroulé de manière inégale. En 1851, les cantons étaient peuplés de manière à peu près égale (entre 13 000 et 17 000 habitants), à l’exception de Luxembourg-Ville, qui était déjà plus grande à l’époque, et du canton plus petit de Vianden. Toutefois, avec l’industrialisation du pays, la population des cantons de Luxembourg-Ville et du canton d’Esch a augmenté plus fortement et plus tôt que celle des autres cantons. Une forte croissance démographique de ces derniers cantons n’intervenait qu’à partir de 1960, et à Vianden à partir du tournant du millénaire. Comme les cantons et les communes sont très différents de par leur nombre d’habitants, mais moins en termes de surface, les densités de population sont très diverses. Au niveau des cantons, la densité varie de 45 à 1 824 habitants/km². Le sud-est du pays est le plus densément peuplé, la capitale affichant la plus grande densité. Au nord et à l’est du canton de Luxembourg, la densité de la population des cantons se situe, par contre, en dessous de la moyenne nationale qui est de 198 habitants/km². [less ▲]

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See detailCritère d'irréductibilité pour les courbes elliptiques semi-stables sur un corps de nombres
David, Agnès UL

E-print/Working paper (2012)

For a fixed number field and an elliptic curve defined and semistable over this number field, we consider the set of prime numbers p such that the Galois representation attached to the p-torsion points of ... [more ▼]

For a fixed number field and an elliptic curve defined and semistable over this number field, we consider the set of prime numbers p such that the Galois representation attached to the p-torsion points of the elliptic curve is reducible. When the number field satisfies a certain necessary condition, we give an explicit bound, depending only on the number field and not on the semistable elliptic curve, for these primes. This generalizes previous results of Kraus. [less ▲]

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See detailCommodity taxation and regulatory competition
Moriconi, Simone; Picard, Pierre M. UL; Zanaj, Skerdilajda UL

E-print/Working paper (2012)

This paper studies competition in regulation and commodity taxation between trading countries. We present a general equilibrium model in which destination based consumption taxes finance public goods ... [more ▼]

This paper studies competition in regulation and commodity taxation between trading countries. We present a general equilibrium model in which destination based consumption taxes finance public goods, while regulation of entry determines the number of firms in the markets. We find (i) no strategic interaction in commodity taxes; (ii) regulation leads to lower commodity tax rates if demand for public goods is more sensitive to income than demand for private goods and (iii) regulation policy is a strategically complement instrument if consumers do not over value product diversity. In the empirical part of the paper, we test our predictions using panel data for 21 OECD countries over the period 1990-2008. [less ▲]

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See detailVergleichende Analyse soziodemographischer Aspekte von Deutschen und Personen ausländischer Nationalität in ländlichen Regionen des Saarlandes
Nienaber, Birte UL; Roos, Ursula UL

E-print/Working paper (2012)

Aufgrund der Lage des Saarlandes innerhalb der Großregion SaarLorLux sowie seiner montanindustriellen Geschichte haben sich in diesem Bundesland spezifische Migrationsformen, wie beispielsweise die ... [more ▼]

Aufgrund der Lage des Saarlandes innerhalb der Großregion SaarLorLux sowie seiner montanindustriellen Geschichte haben sich in diesem Bundesland spezifische Migrationsformen, wie beispielsweise die grenzüberschreitende Migration oder die klassischen Gastarbeiterwanderungen herausgebildet. Besonders die grenznahen Gemeinden zu Frankreich und Luxemburg weisen dadurch einen für ländliche Räume besonders hohen Ausländeranteil auf. So ziehen beispielsweise immer mehr Luxemburger in den grenznah gelegenen Landkreis Merzig-Wadern, so dass die Anzahl der Luxemburger in diesem Landkreis innerhalb von zwei Jahren von 605 (2005) auf 1.297 Personen (2007) anstieg (Statistisches Amt Saarland o.J.).Aus diesem Grund lag der Ausländeranteil in der Gemeinde Perl im Jahr 2009 bei 26,0 Prozent (vgl. Bertelmann Stiftung o.J.). Das Forschungsprojekt „Leben in der Fremde – Demographischer Wandel von Migranten im ländlichen Saarland“ verbindet den demographischen Wandel mit der Migrationsforschung und dem ländlichen Raum. Ziel des Projektes ist in erster Linie der Vergleich soziodemographischer Grunddaten zwischen Personen deutscher und ausländischer Staatsangehörigkeit sowie die Integration von Personen ausländischer Nationalität in die einzelnen Untersuchungsgemeinden. Im Artikel werden zunächst kurz der derzeitige Forschungsstand, das Projekt und die methodische Vorgehensweise erläutert. Es schließt sich ein Vergleich des demographischen Verhaltens von Personen deutscher sowie ausländischer Staatsangehörigkeit in den Gemeinden Perl und Schmelz an. [less ▲]

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See detailRäume und Identitäten als soziale Praxis. Theorien – Konzepte – Methoden. Tagungsbericht
Binsfeld, Andrea UL; Caregari, Laure UL; Reckinger, Rachel UL et al

E-print/Working paper (2012)

Raum und Identität sind zentrale Kategorien der modernen Sozial- und Kulturwissenschaften. Ihre Prominenz spiegelt sich in den vielfältigen und teilweise auch widersprüchlichen Konzepten der beiden ... [more ▼]

Raum und Identität sind zentrale Kategorien der modernen Sozial- und Kulturwissenschaften. Ihre Prominenz spiegelt sich in den vielfältigen und teilweise auch widersprüchlichen Konzepten der beiden Forschungsfelder wider, ebenso wie in diversen wissenschaftstheoretischen Wenden. Dabei haben sich disziplinenübergreifend konstruktivistische und kontingenzorientierte Auffassungen von Räumen und Identitäten durchgesetzt, die in der sozialen Praxis ihren Kristallisationspunkt finden. [less ▲]

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See detailUnfavorable Land Endowment, Cooperation, and Reversal of Fortune
Litina, Anastasia UL

E-print/Working paper (2012)

This research advances the hypothesis that reversal of fortunes in the process of economic develop- ment can be traced to the effect of natural land productivity on the desirable level of cooperation in ... [more ▼]

This research advances the hypothesis that reversal of fortunes in the process of economic develop- ment can be traced to the effect of natural land productivity on the desirable level of cooperation in the agricultural sector. In early stages of development, unfavorable land endowment enhanced the economic incentive for cooperation in the creation of agricultural infrastructure that could mitigate the adverse effect of the natural environment. Nevertheless, despite the beneficial effects of cooperation on the intensive margin of agriculture, low land productivity countries lagged behind during the agricultural stage of development. However, as cooperation, and its persistent effect on social capital, have become increasingly important in the process of industrialization, the transition from agriculture to industry among unfavorable land endowment economies was expedited, permitting those economies that lagged behind in the agricultural stage of development, to overtake the high land productivity economies in the industrial stage of development. Exploiting exogenous sources of variations in land productivity across countries the research further explores the testable predictions of the theory. It establishes that: (i) reversal of fortunes in the process of development can be traced to variation in natural land productivity across countries. Economies characterized by favorable land endowment dominated the world economy in the agricultural stage of development but were overtaken in the process of industrialization; (ii) lower level of land productivity in the past is associated with higher levels of contemporary social capital; (iii) cooperation, as reflected by agricultural infrastructure, emerged primarily in places were land was not highly productive and collective action could have diminished the adverse effects of the environment and enhance agricultural output. [less ▲]

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See detailTransposition of Directive 2009/136/EC on Electronic Communications Completed
Cole, Mark UL

E-print/Working paper (2012)

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See detailB/Ordering in der Großregion. Mobilitäten - Grenzen - Identitäten
Wille, Christian UL

E-print/Working paper (2012)

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See detailHigher Spin Gravity Amplitudes From Zero-form Charges
Colombo, Nicolo UL; Sundell, Per

E-print/Working paper (2012)

We examine zero-form charges in Vasiliev's four-dimensional bosonic higher spin gravities. These are classical observables given by integrals over noncommutative twistor space of adjoint combinations of ... [more ▼]

We examine zero-form charges in Vasiliev's four-dimensional bosonic higher spin gravities. These are classical observables given by integrals over noncommutative twistor space of adjoint combinations of the zero-form master fields, including insertions of delta functions in the deformed oscillators serving as gauge invariant regulators. The regularized charges admit perturbative expansions in terms of multi-linear functionals in the Weyl zero-form, which are Bose symmetric and higher spin invariant by construction, and that can be interpreted as basic building blocks for higher spin gravity amplitudes. We compute two- and three-point functions by attaching external legs given by unfolded bulk-to-boundary propagators, and identify the result with the two- and three-current correlation functions in theories of free conformal scalars and fermions in three dimensions. Modulo assumptions on the structure of the sub-leading corrections, and relying on the generalized Hamiltonian off-shell formulation, we are thus led to propose an expression for the free energy as a sum of suitably normalized zero-form charges [less ▲]

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See detailRegionalisation processes as practices of borderisation
Hesse, Markus UL; Kmec, Sonja UL; Reckinger, Rachel UL et al

E-print/Working paper (2012)

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See detailFeynman integrals and periods in configuration spaces
Ceyhan, Ozgur UL; Marcolli, Matilde

E-print/Working paper (2012)

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See detailGrowth-Friendly Dictatorships
Da Luca, Giacomo; Litina, Anastasia UL; Sekeris, Petros

E-print/Working paper (2012)

In this paper we show that in highly unequal societies, different societal groups may support a rent-seeking dicator serving their interests better than the median voter in a democratic regime ... [more ▼]

In this paper we show that in highly unequal societies, different societal groups may support a rent-seeking dicator serving their interests better than the median voter in a democratic regime. Importantly, it is the stakes of dictator in the economy, in the form of capital ownership, that drives the support of individuals. In particular, in highly societies ruled by a capital-rich dictator endowed with the power to tax and appropriate at will, the elites support dictatorial policies that generate higher growth rates than the ones obtained under democracy. Such support arises despite the total absence of checks and balances on the dictator. [less ▲]

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See detailLecture Notes on Topological Field Theory
Qiu, Jian UL

E-print/Working paper (2012)

These notes are based on the lecture the author gave at the workshop 'Geometry of Strings and Fields' held at Nordita, Stockholm. In these notes, I shall cover some topics in both the perturbative and non ... [more ▼]

These notes are based on the lecture the author gave at the workshop 'Geometry of Strings and Fields' held at Nordita, Stockholm. In these notes, I shall cover some topics in both the perturbative and non-perturbative aspects of the topological Chern-Simons theory. The non-perturbative part will mostly be about the quantization of Chern-Simons theory and the use of surgery for computation, while the non-perturbative part will include brief discussions about framings, eta invariants, APS-index theorem, torsions and finite type knot invariants. [less ▲]

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See detailConnected components of compact matrix quantum groups and finiteness conditions
Cirio, Lucio Simone UL; D'Andrea, Alessandro; Pinzari, Claudia et al

E-print/Working paper (2012)

Detailed reference viewed: 76 (0 UL)
See detailAsymptotics of Harish-Chandra expansions, bounded hypergeometric functions associated with root systems, and applications
Pusti, Sanjoy UL; Narayanan, E. K.; Pasquale, A.

E-print/Working paper (2012)

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See detailOptimal mix of funded and unfunded pension systems: the case of Luxembourg
Guigou, Jean-Daniel UL; Lovat, Bruno; Schiltz, Jang UL

E-print/Working paper (2012)

Financing of the Luxembourg pension system is based on a pay-as-you-go (PAYG) system <br />and hence on an inter-generational contract. As is the case for most other European <br />countries, this system ... [more ▼]

Financing of the Luxembourg pension system is based on a pay-as-you-go (PAYG) system <br />and hence on an inter-generational contract. As is the case for most other European <br />countries, this system will be exposed to the effects of demographic ageing over the coming <br />decades. <br />The aim of this paper is to develop a model that allows to evaluate the efficiency of a <br />diversified pension system financed partly by a pay-as-you-go scheme and partly by <br />capitalisation. The efficiency is measured by the long term sustainability of the system. We <br />compare the sustainability of our model to the one of a pure pay-as-you-go system. [less ▲]

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See detailDie Entwicklung des Eisenbahnverkehrs in der Großregion SaarLorLux
Helfer, Malte UL; Pauly, Michel UL; Caruso, Geoffrey UL

E-print/Working paper (2012)

Die Karte zeigt die Entwicklung des Schienenverkehrs in der Großregion SaarLorLux von seinen Anfängen im Jahr 1838 bis 2016. Die Expansion der betriebenen Netze bis zum 2. Weltkrieg wie auch die ... [more ▼]

Die Karte zeigt die Entwicklung des Schienenverkehrs in der Großregion SaarLorLux von seinen Anfängen im Jahr 1838 bis 2016. Die Expansion der betriebenen Netze bis zum 2. Weltkrieg wie auch die Schrumpfung danach lassen sich im GR-Atlas an einer zeitgesteuerten Karte verfolgen, indem das jeweils gewünschte Jahr ausgewählt wird. Es ist ebenfalls möglich, die Zeit automatisch ablaufen zu lassen. [less ▲]

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See detailHelena, Römische Kaiserin
Binsfeld, Andrea UL

E-print/Working paper (2012)

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See detailA tale of three homotopies
Dotsenko, Vladimir; Poncin, Norbert UL

E-print/Working paper (2012)

Detailed reference viewed: 70 (12 UL)
See detailModal choice and optimal congestion
David, Quentin UL; Foucart, Renaud

E-print/Working paper (2012)

We study the choice of transportation modes within a city where commuters have het- erogeneous preferences for a car. As in standard models of externalities, the market outcome never maximizes aggregate ... [more ▼]

We study the choice of transportation modes within a city where commuters have het- erogeneous preferences for a car. As in standard models of externalities, the market outcome never maximizes aggregate welfare. We show that in the presence of multiple equilibria prob- lems of coordination can worsen this result. Hence, a social planner focusing on the marginal impact of policies may miss the largest source of inefficiency. We discuss two policy tools: taxation and traffic separation (e.g. exclusive lanes for public transportation). Setting the optimal levels of taxation and of traffic separation constitutes a necessary but not a sufficient condition to reach the first best equilibrium. Comparing the relative efficiency of both poli- cies, we show that traffic separation should be preferred for large-scale policies while taxation better applies to marginal modifications of commuting patterns. [less ▲]

Detailed reference viewed: 136 (3 UL)
See detailPaulinus, Bischof von Trier
Binsfeld, Andrea UL

E-print/Working paper (2012)

Detailed reference viewed: 53 (0 UL)
See detailOn the long run economic performance of small economies
Pieretti, Patrice UL; Zanaj, Skerdilajda UL; Zou, Benteng UL

E-print/Working paper (2012)

In this paper, we analyze the long run economic performance of a small economy open to foreign investments. Policy instruments used to attract investments are taxes and attractive public infrastructures ... [more ▼]

In this paper, we analyze the long run economic performance of a small economy open to foreign investments. Policy instruments used to attract investments are taxes and attractive public infrastructures, whereas the policy choices of the rest of the world are taken as given. Applying the Pontryagin’s maximum principle, we first show that there exists one long run optimal size of the small economy which is saddle-point stable. The transitional path is two-dimensional, if the small economy is patient enough. Then, we show that the share of tax income allocated to the infrastructure expenditures plays an important role in attaining such a steady state. However, a deviation from this policy path can lead to an eventual economic collapse. [less ▲]

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See detailDe Rham cohomology and homotopy Frobenius manifolds
Dotsenko, Vladimir UL; Shadrin, Sergey; Vallette, Vallette

E-print/Working paper (2012)

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See detailState Owned Firms: Private Debt, Cost Revelation and Welfare
Picard, Pierre M. UL; Rusli, Ridwan UL

E-print/Working paper (2012)

In this paper we study the role of private debt financing in disciplining a state owned firm operating for a government that incurs a cost of public financing. We show that debt contracts allow the ... [more ▼]

In this paper we study the role of private debt financing in disciplining a state owned firm operating for a government that incurs a cost of public financing. We show that debt contracts allow the government to avoid socially costly subsidies by letting unprofitable state- owned firms default. Debt is never used when the firm and government share the same information about the firm. By contrast, when the state-owned firm has private information, the government has an incentive to use debt to reduce the firm's information rents. We identify the conditions under which a positive debt level benefits governments. They depend on the cost of public funds, the interbank funding rate, the share of foreign investors, the level and uncertainty of the firm's cost. [less ▲]

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See detailConditioned Higher Moment Portfolio Optimisation Using Optimal Control
Boissaux, Marc; Schiltz, Jang UL

E-print/Working paper (2012)

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See detailHigher Koszul duality for associative algebras
Dotsenko, Vladimir UL; Vallette, Bruno

E-print/Working paper (2012)

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See detailModeling default correlation in a US retail loan portfolio
Pisa, Magdalena UL; Wolff, Christian UL; Bams, Dennis

E-print/Working paper (2012)

Detailed reference viewed: 91 (1 UL)
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See detailDie Textilindustrie in der Großregion SaarLorLux
Edelblutte, Simon; Pauly, Michel UL; Caruso, Geoffrey UL et al

E-print/Working paper (2012)

Die Textilindustrie hatte sehr viel Zeit um die Industrielandschaften der Großregion zu verändern, denn sie ist eine der sehr frühzeitig industrialisierten wirtschaftlichen Aktivitäten. Sie entstand oft ... [more ▼]

Die Textilindustrie hatte sehr viel Zeit um die Industrielandschaften der Großregion zu verändern, denn sie ist eine der sehr frühzeitig industrialisierten wirtschaftlichen Aktivitäten. Sie entstand oft auf proto-industrieller Basis, wurde bereits sehr früh in fast all ihren Sektoren mechanisiert (von der Spinnerei über die Weberei, das Färben, das Bleichen und das Bedrucken bis hin zur Konfektion) und lässt auf diese Art manchmal große Industriezusammenschlüsse entstehen, die neben bescheidener gebliebenen Niederlassungen beeindrucken. Dieser Pioniersektor wird heute in Europa oft als Aktivität der Vergangenheit angesehen, deren wichtigste Bereiche in südliche Länder mit billigeren Arbeitskräften ausgelagert wurden. Doch auch wenn die Textilindustrie in der Großregion ein Bild von mehr oder weniger gut umgewandelten und im Sinne des kulturellen Erbes zur Geltung gebrachten Hinterlassenschaften abgibt, so ist sie auch und noch immer ein aktiver Sektor, orientiert in Richtung industrieller Marktnischen oder der Herstellung hochwertiger Produkte. Diese innovativen Produktionen erfolgen oft in modernen Gebäuden, die sich abheben vom Klischee der Textilfabriken in Shedbauweise mit auffallenden hohen Backsteinschloten. [less ▲]

Detailed reference viewed: 95 (2 UL)
See detailEfficient ANOVA for directional data
Ley, Christophe; Swan, Yvik UL; Verdebout, Thomas

E-print/Working paper (2012)

In this paper we tackle the ANOVA problem for directional data (with particular emphasis on geological data) by having recourse to the Le Cam methodology usually reserved for linear multivariate analysis ... [more ▼]

In this paper we tackle the ANOVA problem for directional data (with particular emphasis on geological data) by having recourse to the Le Cam methodology usually reserved for linear multivariate analysis. We construct locally and asymptotically most stringent parametric tests for ANOVA for directional data within the class of rotationally symmetric distributions. We turn these parametric tests into semi-parametric ones by (i) using a studentization argument (which leads to what we call pseudo-FvML tests) and by (ii) resorting to the invariance principle (which leads to efficient rank-based tests). Within each construction the semi-parametric tests inherit optimality under a given distribution (the FvML distribution in the first case, any rotationally symmetric distribution in the second) from their parametric antecedents and also improve on the latter by being valid under the whole class of rotationally symmetric distributions. Asymptotic relative efficiencies are calculated and the finite-sample behaviour of the proposed tests is investigated by means of a Monte Carlo simulation. We conclude by applying our findings on a real-data example involving geological data. [less ▲]

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See detailNoise Trading and the Cross-Section of Index Option Prices
Irek, Fabian UL; Frijns, Bart; Lehnert, Thorsten UL et al

E-print/Working paper (2012)

Detailed reference viewed: 38 (1 UL)
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See detailDie Keramikerzeugung in der Großregion SaarLorLux
Decker, Emile; Pauly, Michel UL; Caruso, Geoffrey UL et al

E-print/Working paper (2012)

Bestehend aus vier Einheiten, Regionen oder Staaten, im Herzen Europas gelegen, wird die Großregion seit Langem als ein Territorium mit einer reichen industriellen Vergangenheit von großer Dynamik ... [more ▼]

Bestehend aus vier Einheiten, Regionen oder Staaten, im Herzen Europas gelegen, wird die Großregion seit Langem als ein Territorium mit einer reichen industriellen Vergangenheit von großer Dynamik angesehen. Unter den zahlreichen Aktivitätszweigen gibt es einen, der lange Zeit ein Aushängeschild ihres Könnens war: die Keramik. Der Begriff „Keramik“ umfasst eine gewisse Anzahl an sehr unterschiedlichen Produkten, was ihr Aussehen und ihre Eigenschaften betrifft, alle hergestellt aus gebranntem Ton. Im Laufe der Zeit haben sich die Herstellungstechniken weiter entwickelt und immer weniger poröse und feinere Ausführungen hervorgebracht. Die Anwendungen dieses Materials haben sich damit beachtlich ausgeweitet. Das Arbeiten mit Ton stellt in dieser Region eine althergebrachte Tradition dar, da die ersten an archäologischen Fundstellen entdeckten Keramiken 7 000 Jahre alt sind. Jahrtausende lang stellten also Töpfer Gegenstände aus gebranntem Ton her. [less ▲]

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See detailMigranten und Migration in der Großregion SaarLorLux
Nienaber, Birte UL; Roos, Ursula; Pauly, Michel UL et al

E-print/Working paper (2012)

Hinsichtlich des demographischen Wandels und des Geburtenrückgangs in einigen Teilen der Großregion SaarLorLux ist die Migration in den vergangenen Jahren immer bedeutsamer geworden. Auch das zurzeit zu ... [more ▼]

Hinsichtlich des demographischen Wandels und des Geburtenrückgangs in einigen Teilen der Großregion SaarLorLux ist die Migration in den vergangenen Jahren immer bedeutsamer geworden. Auch das zurzeit zu beobachtende Bevölkerungswachstum in der Großregion ist in erster Linie auf erhebliche Wanderungsgewinne zurückzuführen. <br />So belief sich zwischen 1990 und 2006 die Nettozuwanderung in die Großregion auf 558 500 Personen, wobei jedoch das Wanderungsgeschehen in unterschiedlichem Ausmaß in den einzelnen Teilregionen die Bevölkerungsentwicklung beeinflusste. [less ▲]

Detailed reference viewed: 194 (22 UL)
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See detailIn-Vivo Bytecode Instrumentation for Improving Privacy on Android Smartphones in Uncertain Environments
Bartel, Alexandre; Klein, Jacques UL; Monperrus, Martin et al

E-print/Working paper (2012)

In this paper we claim that an efficient and readily applicable means to improve privacy of Android applications is: 1) to perform runtime monitoring by instrumenting the application bytecode and 2) in ... [more ▼]

In this paper we claim that an efficient and readily applicable means to improve privacy of Android applications is: 1) to perform runtime monitoring by instrumenting the application bytecode and 2) in-vivo, i.e. directly on the smartphone. We present a tool chain to do this and present experimental results showing that this tool chain can run on smartphones in a reasonable amount of time and with a realistic effort. Our findings also identify challenges to be addressed before running powerful runtime monitoring and instrumentations directly on smartphones. We implemented two use-cases leveraging the tool chain: BetterPermissions, a fine-grained user centric permission policy system and AdRemover an advertisement remover. Both prototypes improve the privacy of Android systems thanks to in-vivo bytecode instrumentation. [less ▲]

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See detailExcludability and Contribution: A Laboratory Study in Team Production
Neugebauer, Tibor UL; Fatás; Croson

E-print/Working paper (2012)

Detailed reference viewed: 91 (3 UL)
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See detailAsymmetric Competition among Nation States: A Differential Game Approach
Han, Yutao UL; Pieretti, Patrice UL; Zanaj, Skerdilajda UL et al

E-print/Working paper (2012)

This paper analyzes the impact of foreign investments on a small country's economy in the context of international competition. To that end, we model tax and infrastructure competition within a ... [more ▼]

This paper analyzes the impact of foreign investments on a small country's economy in the context of international competition. To that end, we model tax and infrastructure competition within a differential game framework between two unequally sized countries. The model accounts for the widely recognized characteristic that small states are more flexible in their political decision making than larger countries. However, we also acknowledge that small size is associated with limited institutional capacity in the provision of public goods. The model shows that the long-term outcome of international competition crucially depends on the degree of capital mobility. In particular, we show that flexibility mitigates against - but does not eliminate - the likelihood of collapse in a small economy. Finally, we note that the beneficial effect of flexibility in a small state increases with its inefficiency in providing public infrastructure and with the degree of international openness. [less ▲]

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See detailVertically Splitting a Firm:Promotion and Demotion in a Team Production Experiment
Neugebauer, Tibor UL; LACOMBA, JUAN A.; FATAS, ENRIQUE et al

E-print/Working paper (2012)

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See detailA level raising result for modular Galois representations modulo prime powers
Tsaknias, Panagiotis UL

E-print/Working paper (2012)

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See detailSentiment Trades and Option Prices
Lehnert, Thorsten UL; Frijns, Bart; Zwinkels, Remco

E-print/Working paper (2012)

Detailed reference viewed: 24 (0 UL)
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See detailUser’s guide to apply, configure and adapt the Genetics Lab
Sonnleitner, Philipp UL; Mayer, Hélène; Keller, Ulrich UL et al

E-print/Working paper (2012)

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See detailDas grenzübergreifende Angebot im Einzelhandel in der Großregion SaarLorLux
Devillet, Guénaël; Jaspard, Mathieu; Vazquez Parras, Juan et al

E-print/Working paper (2012)

Die Karte zeigt die kommerziellen Ballungszentren in den Grenzregionen der Großregion auf der Grundlage eigener Erhebungen. Sie ermöglicht, das kommerzielle Angebot nach der Größe und Zusammensetzung der ... [more ▼]

Die Karte zeigt die kommerziellen Ballungszentren in den Grenzregionen der Großregion auf der Grundlage eigener Erhebungen. Sie ermöglicht, das kommerzielle Angebot nach der Größe und Zusammensetzung der kommerziellen Zentren zu quantifizieren und zu typisieren. Das abgedeckte Gebiet setzt sich zusammen aus dem Großherzogtum Luxemburg und den belgischen, deutschen und französischen Ballungsräumen, die in der Isochrone einer zwanzigminütigen Autofahrt ab der luxemburgischen Grenze liegen. In dieser Isochrone liegen folgende Städte und ihre Ballungsräume: Trier und Bitburg in Rheinland-Pfalz, Saarbrücken im Saarland, Metz, Thionville und Longwy in Lothringen sowie Arlon und Bastogne in Wallonien. Ein einziges Zentrum wurde außerhalb dieser Zone lokalisiert: The Style Outlets in Zweibrücken. Es erscheint in der Datenbank aufgrund seines ausgedehnten Einzugsgebietes, das bis ins Großherzogtum Luxemburg reicht. Im Rahmen dieser Studie wurden nur die Zentren berücksichtigt, die eine ungefähre Größe von 10 000 m² überschreiten. [less ▲]

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See detailLectures on Supergeometry
Covolo, Tiffany UL; Poncin, Norbert UL

E-print/Working paper (2012)

Detailed reference viewed: 535 (166 UL)
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See detailA duality of locally compact groups which does not involve the Haar measure
Kuznetsova, Julia UL

E-print/Working paper (2012)

Detailed reference viewed: 26 (0 UL)
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See detailFiber bundles and connections
Poncin, Norbert UL

E-print/Working paper (2012)

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See detailThe Competitiveness of Global Port-Cities: the Case of Hamburg
Merk, Olaf; Hesse, Markus UL

E-print/Working paper (2012)

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See detailThe Governance of Perpetual Financial Intermediaries
Van Bommel, Jos UL; Penalva, José

E-print/Working paper (2012)

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See detailTrade, Economic Geography and the Choice of Product Quality
Picard, Pierre M. UL

E-print/Working paper (2012)

The present paper studies the effect of the choice of product quality on trade and location of firms. We build a quality-augmented model where consumers have preferences for the quality of a set of ... [more ▼]

The present paper studies the effect of the choice of product quality on trade and location of firms. We build a quality-augmented model where consumers have preferences for the quality of a set of differentiated varieties. Firms do not only develop and sell manufacturing varieties in a monopolistic competitive market but also determine the quality level of their varieties by investing in research and de- velopment. We explore the price and quality equilibrium properties when firms are immobile. We then consider a footloose capital model where capital is allocated to the manufacturing firms in the region offering the highest return. We show that the larger region produces varieties of higher quality and that the quality gap increases with larger asymmetries in region sizes and with larger trade costs. Finally, the home market effect is mitigated when firms choose their product quality. [less ▲]

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See detailKirchenbau im 20. Jahrhundert in der Großregion SaarLorLux
Schelbert, Georg; Brakensiek, Stephan; Pauly, Michel UL et al

E-print/Working paper (2012)

Im Gebiet der Großregion SaarLorLux entstanden im 20. Jh. schätzungsweise mehr als 1 000 neue Kirchenbauten oder vollständige Umbauten älterer Kirchen. Starkes, schubweises Bevölkerungswachstum im Zuge ... [more ▼]

Im Gebiet der Großregion SaarLorLux entstanden im 20. Jh. schätzungsweise mehr als 1 000 neue Kirchenbauten oder vollständige Umbauten älterer Kirchen. Starkes, schubweises Bevölkerungswachstum im Zuge der Industrialisierung; Zerstörungen in beiden Kriegen sowie durch die Kriege bedingte Bevölkerungsverschiebungen schlugen sich auch im Kirchenbau nieder. Für die Gestalt der Kirchenbauten spielen auch innerkirchliche Entwicklungen eine Rolle, insbesondere die seit dem frühen 20. Jh. einsetzende Liturgiediskussion, die als Reform im 2. Vatikanischen Konzil gipfelte und in den verschiedenen Regionen unterschiedlich starke Auswirkung hatte. Mit dieser Karte wollen die Autoren das interdisziplinär zwischen Architektur- und Kunstgeschichte, Städtebau und allgemeiner Kulturgeschichte aufgefasste Thema des Kirchenbaus im 20. Jh. erstmalig flächendeckend sondieren. [less ▲]

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See detailThe Clean Development Mechanism in a Global Carbon Market
Bréchet, Thierry; Ménière, Yann; Picard, Pierre M. UL

E-print/Working paper (2012)

This paper discusses the role of the Clean Development Mechanism (CDM) on the market for carbon quotas and countries' commitments to reduce their carbon emission levels. We show that the CDM contributes ... [more ▼]

This paper discusses the role of the Clean Development Mechanism (CDM) on the market for carbon quotas and countries' commitments to reduce their carbon emission levels. We show that the CDM contributes to an efficient funding of clean technology investments in least developed countries. However, the CDM is not neutral on the global level of carbon emissions as it entices countries to raise their emission caps. The CDM may also make inappropriate the inclusion of any country that takes no emission abatement commitment. It can even make inefficient a country's decision to commit to an emission target. [less ▲]

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See detailInfinitesimal semisimple symplectic extrinsic symmetric spaces
Krantz, Thomas UL

E-print/Working paper (2012)

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See detailLimited Liability, Moral Hazard and Risk Taking – A Safety Net Game
Neugebauer, Tibor UL; Füllbrunn, Sascha

E-print/Working paper (2012)

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See detailAssociated families of immersions of three dimensional CR manifolds in Euclidean spaces
Altomani, Andrea UL; Lawn, Marie-Amélie

E-print/Working paper (2012)

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See detailAnalysing voice in educational discourses
Juffermans, Kasper UL; Van der Aa, Jef

E-print/Working paper (2011)

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See detailChineseness as a moving target: Intermediate report for the HERA Project, Tilburg Case Study
Li, Jinling; Juffermans, Kasper UL; Kroon, Sjaak et al

E-print/Working paper (2011)

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See detailOn Learning a Language in Transformation: Two final year students’ experiences in Chinese complementary education
Li, Jinling; Juffermans, Kasper UL

E-print/Working paper (2011)

This paper is concerned with Chinese-Dutch children’s experiences with learning Chinese in the Netherlands. The paper presents basic facts about the Chinese language and its changing position in the world ... [more ▼]

This paper is concerned with Chinese-Dutch children’s experiences with learning Chinese in the Netherlands. The paper presents basic facts about the Chinese language and its changing position in the world, a brief history of the Chinese diaspora in the Netherlands and the context of Chinese complementary education. It analyses two written accounts of final year students’ experiences with learning Chinese, focusing on the ways of speaking about Chinese in relation to identity and education. In conclusion, it is argued that the students’ experiences urge us to consider Chinese as a polycentric language – i.e. as a language with multiple and competing centres of gravity – and as a language in transformation. [less ▲]

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See detailDoes the GARCH Structural Credit Risk Model Make a Difference?
Jin, Xisong UL; Lehnert, Thorsten UL

E-print/Working paper (2011)

In this study, we empirically investigate and evaluate various approaches to structurally assess credit risk using a panel of European banking groups. We consider not only the standard approaches in the ... [more ▼]

In this study, we empirically investigate and evaluate various approaches to structurally assess credit risk using a panel of European banking groups. We consider not only the standard approaches in the literature, but also include models that allow the asset volatility to be stochastic and models that allow for short- and long-term components of default risk. Models are evaluated by comparing their ability to correctly and timely identify changes in risk indicators. Surprisingly, we find that the GARCH structural credit risk model, despite its more sophisticated modeling approach, typically underperforms more basic models. Importantly for macro-prudential policy, the combined Merton/GARCH-MIDAS model performs best and reflects important market events earlier than the other approaches. [less ▲]

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See detailMarket- and Book-Based Models of Probability of Default for Developing Macroprudential Policy Tools
Jin, Xisong UL; Nadal de Simone, Francisco

E-print/Working paper (2011)

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See detailMultilingual Europe 2.0: Dutch-Chinese youth identities in the era of superdiversity
Li, Jinling; Juffermans, Kasper UL

E-print/Working paper (2011)

This paper argues that multilingual/multicultural identity in Europe has reached a next level since we have entered the era of superdiversity. Under superdiversity we are confronted with a diversification ... [more ▼]

This paper argues that multilingual/multicultural identity in Europe has reached a next level since we have entered the era of superdiversity. Under superdiversity we are confronted with a diversification of diversity: relations between ethnicity, citizenship, residence, origin, language, profession, etc. have become more complex and less predictable than before, and as a consequence there is a need to revisit, deconstruct and reinvent our theoretical toolkit to analyse language, culture, ethnicity, identity, etc. This contribution draws on ongoing ethnographic fieldwork in and around a Chinese complementary school in the Netherlands and is part of a larger project investigating discourses of inheritance and identities in multilingual European settings. It focuses on the ethnic and linguistic identifications of Dutch-Chinese youngsters on the Asian and Proud community of the Dutch social networking site Hyves, and shows how Dutch-Chinese youngsters of diverse backgrounds engage in creative languaging in „netnolectal‟ Dutch while discussing/celebrating their ethnic and linguistic identities. Focusing on young people‟s identities, this paper aims to entangle the complexities of being, speaking and learning Chinese in the Netherlands. It thereby explores the internal diversity within Chineseness and its functioning within, or repositioning as, a larger Asian identity as well as its relation to Dutch/European-ness. [less ▲]

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See detailCaractère d'isogénie et critères d'irréductibilité
David, Agnès UL

E-print/Working paper (2011)

This article deals with the Galois representation attached to elliptic curves with an isogeny of prime degree over a number field. We first determine uniform criteria for the irreducibility of Galois ... [more ▼]

This article deals with the Galois representation attached to elliptic curves with an isogeny of prime degree over a number field. We first determine uniform criteria for the irreducibility of Galois representations attached to elliptic curves in some infinite families, characterised by their reduction type at some fixed places of the base field. Then, we give an explicit form for a bound that appear in a theorem of Momose. Finally, we use these results to precise a previous theorem of the author about the homotheties contained in the image of the Galois representation. [less ▲]

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See detailAuswertung der Selbstevaluation des IDENT-Projekts (2007-2010)
Reckinger, Rachel UL

E-print/Working paper (2011)

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See detailNo trade, one-way or two-way trade?
Okubo, Toshihiro; Picard, Pierre M. UL; Thisse, Jacques-François

E-print/Working paper (2011)

We study how the level of trade costs and the intensity of competition can explain the existence of two-way, one-way or no trade within the same industry. As trade costs decrease from very high to very ... [more ▼]

We study how the level of trade costs and the intensity of competition can explain the existence of two-way, one-way or no trade within the same industry. As trade costs decrease from very high to very low values, the economy moves from autarky to a regime of two-way trade, through a regime of one-way trade from the larger to the smaller country. Trade is less likely when the economy gets more competitive. Finally once capital is mobile across countries, the market delivers an outcome in which capital is too much concentrated in the large country. [less ▲]

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See detailCorporate Governance and Financial Development: A Study of the French Case
Guigou, Jean-Daniel UL; Boughanmi, Afef; Defffains, Bruno et al

E-print/Working paper (2011)

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See detailDer Digitale Pranger – Die Benotung von Lehrern im Zeitalter des Web 2.0
Schmitz, Sandra UL

E-print/Working paper (2011)

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