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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)

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See detailUpside down with the strong partial clones
Schölzel, Karsten UL

E-print/Working paper (2013)

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See detailOn business cycles of variety and quality
Hamano, Masashige UL

E-print/Working paper (2013)

This paper explores the role played by product variety and quality in a real business cycle model. Firms are heterogeneous in terms of their speci c quality as well as pro- ductivity levels. Firms which ... [more ▼]

This paper explores the role played by product variety and quality in a real business cycle model. Firms are heterogeneous in terms of their speci c quality as well as pro- ductivity levels. Firms which have costly technology enter in a period of high aggregated demand and produce high quality goods. Thus, the average quality level and number of available varieties are procyclical, as in the data. The model can replicate the observed in flationary bias in the conventional Consumer Price Index due to a rise in the number of new product varieties and quality. [less ▲]

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See detailVon der schulischen Segregation zur inklusiven Bildung? Die Wirkung der UN-Konvention über die Rechte von Menschen mit Behinderungen auf Bildungsreformen in Bayern und Schleswig-Holstein
Blanck, Jonna M.; Edelstein, Benjamin; Powell, Justin J W UL

E-print/Working paper (2013)

Germany has among the most highly stratified and segregated educational systems in Europe. Its differentiated special school system, in particular, exemplifies institutional inertia. Yet Article 24 of the ... [more ▼]

Germany has among the most highly stratified and segregated educational systems in Europe. Its differentiated special school system, in particular, exemplifies institutional inertia. Yet Article 24 of the United Nations Convention on the Rights of Disabled People (UN-CRPD), ratified in Germany in 2008, mandates implementation of inclusive education. To achieve the UN-CRPD’s goals, Germany’s sixteen Bundesländer must radically transform their education systems, whose structures remain antithetical to inclusive education. Examining education policy reform processes in two contrasting cases, we investigate four types of mechanisms of institutional reproduction responsible for path-dependent developments: power-based, legitimacy-based, utilitarian, and functional. We compare Schleswig-Holstein, where inclusive education has diffused broadly, with Bavaria, where implementation has stalled due to backlash and school segregation remains pervasive. Delving below the national level and emphasizing the importance of timing, we show contrasting effects of an exogenous shock on the direction of endogenous reforms. [less ▲]

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See detailCobham's theorem for abstract numeration systems
Charlier, Emilie; Leroy, Julien UL; Rigo, Michel

E-print/Working paper (2013)

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See detailMarriage Formation as an Optimal Stopping Problem with Assortative Meeting
Parilina, Elena; Tampieri, Alessandro UL

E-print/Working paper (2013)

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See detailAsymmetric contests with risky rents
Guigou, Jean-Daniel UL

E-print/Working paper (2013)

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See detailPolitical Economics of External Sovereign Defaults
Achury, Carolina; Koulovatianos, Christos UL; Tsoukalas, John

E-print/Working paper (2013)

We study how excessive debt-GDP ratios affect political sustainability of prudent fiscal policy in country members of a monetary union. We develop a model with free choice of distinct rent-seeking groups ... [more ▼]

We study how excessive debt-GDP ratios affect political sustainability of prudent fiscal policy in country members of a monetary union. We develop a model with free choice of distinct rent-seeking groups to cooperate (or not) in providing public goods, in seeking rents, and in austere debt issuing through international markets. Noncooperation of rent-seeking groups on fiscal prudence triggers collective fiscal impatience: fiscal debt is issued excessively because each group expropriates extra rents before other groups do so, too. Such collective fiscal impatience leads to a vicious circle of high international interest rates and external-debt default. Our calibration suggests that debt-GDP ratios below 137% foster cooperation among rent-seeking groups, which avoids collective fiscal impatience and default. Our analysis helps in understanding the politicoeconomic sustainability of sovereign rescue packages, emphasizing the need for fiscal targets and for possible debt haircuts. [less ▲]

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See detailThe kernel of Ribet’s isogeny for genus three Shimura curves
Molina Blanco, Santiago UL; Gonzalez Rovira, Josep

E-print/Working paper (2013)

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See detailRights offerings, trading and regulation : a global perspective
Vermaelen, Theo UL; Massa, Massimo; Moqi, Xu

E-print/Working paper (2013)

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See detailBuybacks around the world
Vermaelen, Theo UL; Peyer, Urs; Manconi, Alberto

E-print/Working paper (2013)

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See detailDeclining bargaining power of workers and the rise of early retirement in Europe
Batyra, Anna; de la Croix, David; Pierrard, Olivier et al

E-print/Working paper (2013)

We offer an alternative explanation for the decline in labor force participation of senior workers. Typically, tax and transfer explanations have been proposed. On the contrary, a model with imperfectly ... [more ▼]

We offer an alternative explanation for the decline in labor force participation of senior workers. Typically, tax and transfer explanations have been proposed. On the contrary, a model with imperfectly competitive labor market allows to consider as well the effects of a drop in bargaining power, which would not be possible in a purely neoclassical framework. We find that a decline in the bargaining power of workers, which has taken place in the last four decades, has largely contributed to the rise in inactivity in Europe. However, we need a combination of these two explanations, along with population aging and a fall in the matching efficiency, in order to correctly reproduce the joint evolutions of other labor market variables such as the employment and unemployment rates. [less ▲]

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See detailDimension Formulae for Spaces of Lifted Bianchi Modular Forms
Haluk Sengun, M.; Tsaknias, Panagiotis UL

E-print/Working paper (2013)

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See detailUniversal families of extensions of coherent systems
Tommasini, Matteo UL

E-print/Working paper (2013)

We prove a result of cohomology and base change for families of coherent systems over a curve. We use that in order to prove the existence of (non-split, non-degenerate) universal families of extensions ... [more ▼]

We prove a result of cohomology and base change for families of coherent systems over a curve. We use that in order to prove the existence of (non-split, non-degenerate) universal families of extensions for families of coherent systems (in the spirit of the paper "Universal families of extensions" by H. Lange). Such results will be applied in subsequent papers in order to describe the wallcrossing for some moduli spaces of coherent systems. [less ▲]

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See detailCohomological Approach to the Graded Berezinian
Covolo, Tiffany UL

E-print/Working paper (2013)

We develop the theory of linear algebra over a (Z_2)^n-commutative algebra (n in N), which includes the well-known super linear algebra as a special case (n=1). Examples of such graded-commutative ... [more ▼]

We develop the theory of linear algebra over a (Z_2)^n-commutative algebra (n in N), which includes the well-known super linear algebra as a special case (n=1). Examples of such graded-commutative algebras are the Clifford algebras, in particular the quaternion algebra H. Following a cohomological approach, we introduce analogues of the notions of trace and determinant. Our construction reduces in the classical commutative case to the coordinate-free description of the determinant by means of the action of invertible matrices on the top exterior power, and in the supercommutative case it coincides with the well-known cohomological interpretation of the Berezinian. [less ▲]

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See detailSkewness Risk Premium: Theory and Empirical Evidence
Lehnert, Thorsten UL; Wolff, Christian UL; Lin, Yuehao

E-print/Working paper (2013)

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See detailStein’s Overeaction Puzzle: Option Anomaly or Perfectly Rational Behavior
Lehnert, Thorsten UL; Martelin, Nicolas UL; Lin, Yuehao

E-print/Working paper (2013)

Detailed reference viewed: 89 (5 UL)
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See detailA survey of semiparametric efficiency bounds for some microeconometric models
Severini, Thomas A.; Tripathi, Gautam UL

E-print/Working paper (2013)

Detailed reference viewed: 87 (2 UL)
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See detailThe Impact of Policy Interventions on Stock Liquidity
Lehnert, Thorsten UL; Busch, Thomas

E-print/Working paper (2013)

Detailed reference viewed: 39 (3 UL)
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See detailEstimation Risk in Option Pricing
Lehnert, Thorsten UL; Bams, Dennis; Blanchard, Gildas

E-print/Working paper (2013)

Detailed reference viewed: 62 (3 UL)
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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 ▲]

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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 detailExtending functions to natural extensions
Teheux, Bruno UL; Hansoul, Georges

E-print/Working paper (2013)

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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 ▲]

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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.

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

E-print/Working paper (2013)

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See detailMigration, Wages and Fiscal competition
Gabszewicz, Jean; Tarola, Ornella; Zanaj, Skerdilajda UL

E-print/Working paper (2013)

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See detailWashington Meets Wall Street: A Closer Examination of the Presidential Cylce Puzzle
Kräussl, Roman UL; Lucas, André; Rijsbergen, David R. et al

E-print/Working paper (2013)

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See detailHas Europe Been Catching Up? An Industry Level Analysis of Venture Capital Success over 1985-2009*
Kräussl, Roman UL; Krause, Stefan

E-print/Working paper (2013)

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See detailCapital- and Labor-Saving Technical Change in an Aging Economy
Irmen, Andreas UL

E-print/Working paper (2013)

Does population aging and the associated increase in the old-age dependency ratio affect economic growth ? The answer is given in a novel analytical framework that allows for population aging to affect ... [more ▼]

Does population aging and the associated increase in the old-age dependency ratio affect economic growth ? The answer is given in a novel analytical framework that allows for population aging to affect endogenous capital- and labor-saving technical change. The short-run analysis reveals that population aging induces more labor- and less capital-saving technical change as it increases the relative scarcity of labor with respect to capital. Due to external contemporaneous knowledge spill-overs across innovating firms induced technical change has a first-order effect on current aggregate income. In the long-run capitalsaving technical progress vanishes, and the economy’s growth rate reflects only labor-saving technical change. However, the mere possibility of capital-saving technical change is shown to imply that the economy’s steady-state growth rate becomes independent of its age structure: neither a higher life-expectancy nor a decline in fertility affects economic growth in the long run. [less ▲]

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See detailA Generalized Steady-State Growth Theorem
Irmen, Andreas UL

E-print/Working paper (2013)

Uzawa’s steady-state growth theorem (Uzawa (1961)) is generalized to a neoclassical economy that uses current output, e. g., to create technical progress or to manufacture intermediates. The difference ... [more ▼]

Uzawa’s steady-state growth theorem (Uzawa (1961)) is generalized to a neoclassical economy that uses current output, e. g., to create technical progress or to manufacture intermediates. The difference between aggregate final-good production and these resources is referred to as net output. The new generalized steady-state growth theorem holds since net output exhibits constant returns to scale in capital and labor. This insight provides an understanding for why technical change is labor-augmenting in steady state even if capital-augmenting technical change is feasible. By example, this point is made for three recent growth models that allow for endogenous capital- and labor-augmenting technical change, namely, Irmen (2013), Acemoglu (2003), and Acemoglu (2009), Chapter 15. The reduced form of these models is shown to be consistent with the generalized steady-state growth theorem. [less ▲]

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See detailStochastic flows and an interface SDE on metric graphs
Hajri, Hatem UL; Raimond, Olivier

E-print/Working paper (2013)

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See detailThe Dynamics Implications of Liberalizing Global Migration
Delogu, Marco UL

E-print/Working paper (2013)

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See detailReal Exchange Rates, Commodity Prices and Structural Factors in Developing Countries
Carpantier, Jean-Francois UL; Bodart, Vincent; Candelon, Bertrand

E-print/Working paper (2013)

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See detailCoding observations of the Member States and judgements of the Court of Justice of the EU under the preliminary reference procedure 1997-2008
Naurin, Daniel; Cramér, Per; Larsson, Olof et al

E-print/Working paper (2013)

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See detailA Syntactic-Semantic Approach to Incremental Verification
Bianculli, Domenico UL; Filieri, Antonio; Ghezzi, Carlo et al

E-print/Working paper (2013)

Software verification of evolving systems is challenging mainstream methodologies and tools. Formal verification techniques often conflict with the time constraints imposed by change management practices ... [more ▼]

Software verification of evolving systems is challenging mainstream methodologies and tools. Formal verification techniques often conflict with the time constraints imposed by change management practices for evolving systems. Since changes in these systems are often local to restricted parts, an incremental verification approach could be beneficial. This paper introduces SiDECAR, a general framework for the definition of verification procedures, which are made incremental by the framework itself. Verification procedures are driven by the syntactic structure (defined by a grammar) of the system and encoded as semantic attributes associated with the grammar. Incrementality is achieved by coupling the evaluation of semantic attributes with an incremental parsing technique. We show the application of SiDECAR to the definition of two verification procedures: probabilistic verification of reliability requirements and verification of safety properties. [less ▲]

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See detailSet-reconstructibility of Post classes
Couceiro, Miguel; Lehtonen, Erkko UL; Schölzel, Karsten UL

E-print/Working paper (2013)

The clones of Boolean functions are classified in regard to set-reconstructibility via a strong dichotomy result: the clones containing only affine functions, conjunctions, disjunctions or constant ... [more ▼]

The clones of Boolean functions are classified in regard to set-reconstructibility via a strong dichotomy result: the clones containing only affine functions, conjunctions, disjunctions or constant functions are set-reconstructible, whereas the remaing clones are not weakly reconstructible. [less ▲]

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See detailCurrency Carry Trades and Funding Risk
Ferreira Filipe, Sara UL; Suominen, Matti UL

E-print/Working paper (2013)

In this paper, we measure currency carry trade funding risk using stock market volatility and crash risk in Japan, the main funding currency country. We show that the measures of funding risk in Japan can ... [more ▼]

In this paper, we measure currency carry trade funding risk using stock market volatility and crash risk in Japan, the main funding currency country. We show that the measures of funding risk in Japan can explain 42% of the monthly currency carry trade returns during our sample period, 2000-2011. In addition, they explain 64% of the monthly foreign exchange volatility in our sample of ten main currencies, 28% of the speculators' net currency futures positions in Australian dollar versus Japanese yen, skewness in currency returns and currency crashes. We present a theoretical model that is consistent with these findings. [less ▲]

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See detail(Un)stable vertical collusive agreements
Jean, Gabszewicz; Zanaj, Skerdilajda UL

E-print/Working paper (2013)

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See detailDas mehrsprachige Gehirn
Engel de Abreu, Pascale UL

E-print/Working paper (2013)

Der „kognitive Vorteil“ der Mehrsprachigkeit besteht darin, dass mehrsprachige Kinder in bestimmten kognitiven Aufgaben, welche die sogenannten „exekutiven Funktionen“ messen, besser sind als Kinder, die ... [more ▼]

Der „kognitive Vorteil“ der Mehrsprachigkeit besteht darin, dass mehrsprachige Kinder in bestimmten kognitiven Aufgaben, welche die sogenannten „exekutiven Funktionen“ messen, besser sind als Kinder, die nur eine Sprache sprechen. [less ▲]

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See detailLa perception de la Grande Région SaarLorLux par les médias
Wiermer, Patrick; Caruso, Geoffrey UL; Helfer, Malte UL et al

E-print/Working paper (2013)

How do the media perceive the Greater Region on both sides of the borders? An analysis of the main regional daily newspapers was carried out in order to determine the media's informational centres and ... [more ▼]

How do the media perceive the Greater Region on both sides of the borders? An analysis of the main regional daily newspapers was carried out in order to determine the media's informational centres and peripheries, and to identify the predominant thematic axes. The map is based on the results of a dissertation written in 2008 by a student of the cultural geography department at Saarland University. [less ▲]

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See detailVilles du Moyen Âge tardif (1180-1500) dans la Grande Région SaarLorLux
Penny, Alain; Caruso, Geoffrey UL; Pauly, Michel UL et al

E-print/Working paper (2013)

Due to different natural, political and economic conditions, there are clear differences in the territorial distribution and temporal development of late medieval towns in the Greater Region. The map ... [more ▼]

Due to different natural, political and economic conditions, there are clear differences in the territorial distribution and temporal development of late medieval towns in the Greater Region. The map 'Cities of the Late Middle Ages' shows the cities which could be designated as cities in the Late Middle Ages, i.e. between the beginning of the 13th century and the year 1500. It is important that the definition of a late medieval town meets several criteria. [less ▲]

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See detailAsymmetric contests with risky rents
Guigou, Jean-Daniel UL; Lovat, Bruno; Boissaux, Mac

E-print/Working paper (2013)

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See detailCommodities Inventory Effect
Carpantier, Jean-Francois UL; Dufays, Arnaud

E-print/Working paper (2013)

Does commodity price volatility increase when inventories are low? We are the first ones to document this relationship. To that aim, we estimate asymmetric volatility models for a large set of commodities ... [more ▼]

Does commodity price volatility increase when inventories are low? We are the first ones to document this relationship. To that aim, we estimate asymmetric volatility models for a large set of commodities over 1994-2011. Since inventories are hard to measure, especially for high frequency data, we use positive return shocks as a new original proxy for inventories and find that asymmetric GARCH models reveal a significant inventory effect for many commodities. The results look robust. They hold if we allow the unconditional variance to vary over time and if we relax the parametric form. [less ▲]

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See detailReal exchanges rates, commodities prices and structural factors in developing countries
Carpantier, Jean-Francois UL; Bodart, Vincent; Candelon, Bertrand

E-print/Working paper (2013)

This paper provides new empirical evidence about the relationship that may exist between real exchange rates and commodity prices in developing countries that are specialized in the export of a main ... [more ▼]

This paper provides new empirical evidence about the relationship that may exist between real exchange rates and commodity prices in developing countries that are specialized in the export of a main primary commodity. It investigates how structural factors like the exchange rate regime, the degree of financial and trade openness, the degree of export concentration and the type of the commodity exports affect the strength of the commodity price-real exchange rate dependence. [less ▲]

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See detailEmpirical Welfare Analysis - When Preferences Matter
Carpantier, Jean-Francois UL; Sapata, Christelle

E-print/Working paper (2013)

Fleurbaey and Maniquet have proposed the criteria of conditional equality and of egalitarian equivalence to assess the equity among individuals in an ordinal setting. Empirical applications are rare and ... [more ▼]

Fleurbaey and Maniquet have proposed the criteria of conditional equality and of egalitarian equivalence to assess the equity among individuals in an ordinal setting. Empirical applications are rare and only partially consistent with their framework. We propose a new empirical approach that relies on individual preferences, is consistent with the ordinal criteria and enables to compare them with the cardinal criteria. We estimate a utility function that incorporates individual heterogeneous preferences, obtain ordinal measures of well-being and apply conditional equality and egalitarian equivalence. We then propose two cardinal measures of well-being, that are comparable with the ordinal model, to compute Roemer’s and Van de gaer’s criteria. Finally we compare the characteristics of the worst-off displayed by each criterion. We apply this model to a sample of US micro data and obtain that about 18% of the worst-off are not common to all criteria. [less ▲]

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See detailVarying the number of bidders in the first-price sealed-bid auction: experimental evidence for the one-shot game
Neugebauer, Tibor UL; Füllbrunn, Sascha

E-print/Working paper (2013)

Detailed reference viewed: 114 (4 UL)
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See detail5D Super Yang-Mills on Y p,q Sasaki-Einstein manifolds
Qiu, Jian UL; Zabzine, Maxim

E-print/Working paper (2013)

On any simply connected Sasaki-Einstein five dimensional manifold one can construct a super Yang-Mills theory which preserves at least two supersymmetries. We study the special case of toric Sasaki ... [more ▼]

On any simply connected Sasaki-Einstein five dimensional manifold one can construct a super Yang-Mills theory which preserves at least two supersymmetries. We study the special case of toric Sasaki-Einstein manifolds known as Y p,q manifolds. We use the localisation technique to compute the full perturbative part of the partition function. The full equivariant result is expressed in terms of certain special function which appears to be a curious generalisation of the triple sine function. As an application of our general result we study the large N behaviour for the case of single hypermultiplet in adjoint representation and we derive the N 3-behaviour in this case. [less ▲]

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See detailStudents Social Origins and Targeted Grade Inflation
Tampieri, Alessandro UL

E-print/Working paper (2013)

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See detailTrade integration and trade imbalances in the European Union: a network perspective
Carpantier, Jean-Francois UL; Delvenne, Jean-Charles; Krings, Gautier

E-print/Working paper (2013)

We study the ever more integrated and ever more unbalanced trade relationships between European countries. To better capture the complexity of economic networks, we propose two global measures that assess ... [more ▼]

We study the ever more integrated and ever more unbalanced trade relationships between European countries. To better capture the complexity of economic networks, we propose two global measures that assess the trade integration and the trade imbalances of the European countries. These measures are the network (or indirect) counterparts to traditional (or direct) measures such as the trade-to-GDP (Gross Domestic Product) and trade deficit-to-GDP ratios. Our indirect tools account for the European inter-country trade structure and follow (i) a decomposition of the global trade flow into elementary flows that highlight the long-range dependencies between exporting and importing economies and (ii) the commute-time distance for trade integration,which measures the impact of a perturbation in the economy of a country on another country, possibly through intermediate partners by domino effect. Our application addresses the impact of the launch of the Euro. We find that the indirect imbalance measures better identify the countries ultimately bearing deficits and surpluses, by neutralizing the impact of trade transit countries, such as the Netherlands. Among others, we find that ultimate surpluses of Germany are quite concentrated in only three partners. We also show that for some countries, the direct and indirect measures of trade integration diverge, thereby revealing that these countries (e.g. Greece and Portugal) trade to a smaller extent with countries considered as central in the European Union network. [less ▲]

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See detailOn Immersible G-Structures
Santi, Andrea UL

E-print/Working paper (2013)

Detailed reference viewed: 64 (1 UL)
See detailPolytopic uncertainty for linear systems: New and old complexity results
Vlassis, Nikos UL; Jungers, R.M.

E-print/Working paper (2013)

We survey the problem of deciding the stability or stabilizability of uncertain linear systems whose region of uncertainty is a polytope. This natural setting has applications in many fields of applied ... [more ▼]

We survey the problem of deciding the stability or stabilizability of uncertain linear systems whose region of uncertainty is a polytope. This natural setting has applications in many fields of applied science, from Control Theory to Systems Engineering to Biology. We focus on the algorithmic decidability of this property when one is given a particular polytope. This setting gives rise to several different algorithmic questions, depending on the nature of time (discrete/continuous), the property asked (stability/stabilizability), or the type of uncertainty (fixed/switching). Several of these questions have been answered in the literature in the last thirty years. We point out the ones that have remained open, and we answer all of them, except one which we raise as an open question. In all the cases, the results are negative in the sense that the questions are NP-hard. As a byproduct, we obtain complexity results for several other matrix problems in Systems and Control. [less ▲]

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See detailA Numerical Scheme for Multisignal Weight Constrained Conditioned Portfolio Optimisation Problems
Boissaux, Marc; Schiltz, Jang UL

E-print/Working paper (2013)

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See detailFrom tax evasion to tax planning
Bourgain, Arnaud UL; Pieretti, Patrice UL; Zanaj, Skerdilajda UL

E-print/Working paper (2013)

This paper analyzes within a simple model how a removal of bank secrecy can impact tax revenues and banks'profitability, assuming that offshore centers are able to offer sophisticated but legal, tax ... [more ▼]

This paper analyzes within a simple model how a removal of bank secrecy can impact tax revenues and banks'profitability, assuming that offshore centers are able to offer sophisticated but legal, tax planning. Two alternative regimes are considered. A first, in which there is strict bank secrecy and a second, where there is international information exchange for tax purposes. In particular, we show that sharing tax information with onshore countries can be a dominant strategy for an OFC if there is enough scope for providing tax planning. Moreover, a partial reduction of tax liabilities can already prompt OFCs to voluntarily exchange relevant tax information. We also discuss the conditions under which the possible removal of bank secrecy may reduce or increase the onshore country's tax revenue. [less ▲]

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See detail'A rereading of the Werner Report of 8 October 1970 in the light of the Pierre Werner family archives'
Danescu, Elena UL

E-print/Working paper (2013)

The digital research corpus ‘A rereading of the Werner Report of 8 October 1970 in the light of the Pierre Werner family archives’ showcases the results of the first stage of the ‘Pierre Werner and ... [more ▼]

The digital research corpus ‘A rereading of the Werner Report of 8 October 1970 in the light of the Pierre Werner family archives’ showcases the results of the first stage of the ‘Pierre Werner and Europe’ research project (2011-2013). Based on a thorough exploration of the Werner family archives, which have been opened for the first time for research purposes, and also on other relevant archives — both Luxembourgish and international, public and private — containing multimedia material in several languages, this corpus throws light on the alchemy of the Werner Report and the mindset in which it was developed. Previously unpublished documents have helped clarify the varied, nuanced role of Pierre Werner and his personal contribution to the development and adoption of the stage-by-stage plan, on a theoretical, methodological and political level, in the context of his European achievements as a whole. The research corpus contains a comprehensive, varied selection of primary sources and related resources, as well as a detailed analytical study, which provides a new interpretation of various little-known, original sources. This corpus offers a ‘rereading’, a fresh look at the Werner Report, retracing the context and historical background in which the report was drafted and examining the work of the Werner Committee, and highlighting the impact of the Werner Plan on the path towards Economic and Monetary Union. In the interests of clarity, the study is accompanied by a list of references cited by section, as well as a list of key figures with brief biographical details, a comprehensive bibliography and a chronology. [less ▲]

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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 ▲]

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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: 128 (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: 63 (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 detailLEARN stellt sech fier
Engel de Abreu, Pascale UL; Schiltz, Christine UL; Hoffmann, Danielle UL et al

E-print/Working paper (2012)

Detailed reference viewed: 123 (7 UL)
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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: 60 (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 ▲]

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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: 370 (164 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 detailA level raising result for modular Galois representations modulo prime powers
Tsaknias, Panagiotis UL

E-print/Working paper (2012)

Detailed reference viewed: 37 (1 UL)
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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 ▲]

Detailed reference viewed: 154 (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: 138 (3 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)

Detailed reference viewed: 78 (2 UL)
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Peer Reviewed
See detailRegionalisation processes as practices of borderisation
Hesse, Markus UL; Kmec, Sonja UL; Reckinger, Rachel UL et al

E-print/Working paper (2012)

Detailed reference viewed: 233 (22 UL)
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Peer Reviewed
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: 94 (1 UL)
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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 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)

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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 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 ▲]

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

E-print/Working paper (2012)

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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 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 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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