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See detailFrom Model Transformation to Model Integration based on the Algebraic Approach to Triple Graph Grammars (Long Version)
Ehrig, Hartmut; Ehrig, Karsten; Hermann, Frank UL

Report (2008)

Success and efficiency of software and system design fundamentally relies on its models. The more they are based on formal methods the more they can be automatically transformed to execution models and ... [more ▼]

Success and efficiency of software and system design fundamentally relies on its models. The more they are based on formal methods the more they can be automatically transformed to execution models and finally to implementation code. This paper presents model transformation and model integration as specific problem within bidirectional model transformation, which has shown to support various purposes, such as analysis, optimization, and code generation. The main purpose of model integration is to establish correspondence between various models, especially between source and target models. From the analysis point of view, model integration supports correctness checks of syntactical dependencies between different views and models. The overall concept is based on the algebraic approach to triple graph grammars, which are widely used for model transformation. The main result shows the close relationship between model transformation and model integration. For each model transformation sequence there is a unique model integration sequence and vice versa. This is demonstrated by a quasi-standard example for model transformation between class models and relational data base models. [less ▲]

Detailed reference viewed: 38 (2 UL)
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See detailTransformation of Type Graphs with Inheritance for Ensuring Security in E-Government Networks (Long Version)
Hermann, Frank UL; Ehrig, Hartmut; Ermel, Claudia

Report (2008)

E-government services usually process large amounts of confidential data. Therefore, security requirements for the communication between components have to be adhered in a strict way. Hence, it is of main ... [more ▼]

E-government services usually process large amounts of confidential data. Therefore, security requirements for the communication between components have to be adhered in a strict way. Hence, it is of main interest that developers can analyze their modularized models of actual systems and that they can detect critical patterns. For this purpose, we present a general and formal framework for critical pattern detection and user-driven correction as well as possibilities for automatic analysis and verification at meta-model level. The technique is based on the formal theory of graph transformation, which we extend to transformations of type graphs with inheritance within a type graph hierarchy. We apply the framework to specify relevant security requirements. The extended theory is shown to fulfil the conditions of a weak adhesive HLR category allowing us to transfer analysis techniques and results shown for this abstract framework of graph transformation. In particular, we discuss how confluence analysis and parallelization can be used to enable parallel critical pattern detection and elimination. [less ▲]

Detailed reference viewed: 33 (2 UL)
See detailEvidence on the Insurance Effect of Marginal Income Taxes
Grant, Charles; Koulovatianos, Christos UL; Michaelides, Alexander et al

Report (2008)

Marginal income taxes may have an insurance effect by decreasing the effective fluctuations of after-tax individual income. By compressing the idiosyncratic component of personal income fluctuations ... [more ▼]

Marginal income taxes may have an insurance effect by decreasing the effective fluctuations of after-tax individual income. By compressing the idiosyncratic component of personal income fluctuations, higher marginal taxes should be negatively correlated with the dispersion of consumption across households, a necessary implication of an insurance effect of taxation. Our study empirically examines this negative correlation, exploiting the ample variation of state taxes across US states. We show that taxes are negatively correlated with the consumption dispersion of the within-state distribution of non-durable consumption and that this correlation is robust. [less ▲]

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See detailOn the Relationship of Model Transformations Based on Triple and Plain Graph Grammars (Long Version)
Ehrig, Hartmut; Ermel, Claudia; Hermann, Frank UL

Report (2008)

Triple graph grammars have been applied and implemented as a formal basis for model transformations in a variety of application areas. They convince by special abilities in automatic derivation of forward ... [more ▼]

Triple graph grammars have been applied and implemented as a formal basis for model transformations in a variety of application areas. They convince by special abilities in automatic derivation of forward backward and several other transformations out of just one specified set of rules for the integrated model defined by a triple of graphs. While many case studies and all implementations, which state that they are using triple graph grammars, do not use triples of graphs this paper presents the justification for many of them. It shows a one to one correspondence between triple graph grammars and suitable plain graph grammars, thus results and benefits of the triple case can be transferred to the plain case. Main results show the relationship between both graph transformation approaches, syntactical correctness of model transformations based on triple graph grammars and a sound and complete condition for functional behaviour. Theoretical results are elaborated on an intuitive case study for a model transformation from class diagrams to database models. [less ▲]

Detailed reference viewed: 29 (2 UL)
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See detailCross-Country Income Differences and Technology Diffusion in a Competitive World
Irmen, Andreas UL

Report (2008)

This paper develops a new open-economy endogenous growth model where technology diffusion allows for a stable and non-degenerate world income distribution. In accordance with the empirical literature, I ... [more ▼]

This paper develops a new open-economy endogenous growth model where technology diffusion allows for a stable and non-degenerate world income distribution. In accordance with the empirical literature, I find that country characteristics such as the social infrastructure, the degree of openness, the investment rate, population growth, the level of human capital, or growth policies such as subsidies to innovation investments explain a country’s position in the eventual world income distribution. Club convergence in growth rates can be traced back to a country’s openness and to a minimum required level of human capital. [less ▲]

Detailed reference viewed: 61 (0 UL)
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See detailDie Jugend in Esch. Lebenslagen, Freizeitinteressen und Freundesgruppen
Heinen, Andreas UL; Boultgen, Danielle; Willems, Helmut UL

Report (2007)

Detailed reference viewed: 56 (9 UL)
See detailPour le multilinguisme: Exploiter à l’école la diversité des contextes européens. Rapport final de la facette 2.
Artus, Frédérique; Demeuse, Marc; Reichert, Monique UL et al

Report (2007)

Detailed reference viewed: 42 (4 UL)
See detailEuropean Union foreign direct investment yearbook 2007
Margherita, Antonia UL; Hult, Merja; Corsini, Cristina et al

Report (2007)

The direct investment pocketbook provides users with analytical aspects of foreign direct investment stocks, flows and income for the European Union. The pocketbook has a simple objective: to provide ... [more ▼]

The direct investment pocketbook provides users with analytical aspects of foreign direct investment stocks, flows and income for the European Union. The pocketbook has a simple objective: to provide political and corporate decision-makers with high quality statistical information on direct investment. [less ▲]

Detailed reference viewed: 71 (4 UL)
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See detailAn Ethical Theory of Corporate Governance History
Zetzsche, Dirk Andreas UL

Report (2007)

The present Anglo-American system of corporate control is said to be a random result of market forces, the strong influence of which resulted from a weak state, and undefined principles in the state's ... [more ▼]

The present Anglo-American system of corporate control is said to be a random result of market forces, the strong influence of which resulted from a weak state, and undefined principles in the state's economic policy until the 1930s. In contrast, in Continental Europe, strong states with a tendency to interfere with market forces were established. The events resulting in these two divergent systems must be analysed in order to understand what predominant factors catalyzed the development of the current corporate governance structures. Though values other than religious principles are likely to prevail today, this paper posits that religious foundations provide a sound explanation for the developmental path of corporate governance in Anglo-America and Continental Europe. Further, it assesses the impact of such an ethical theory of corporate governance history on contemporary convergence debate. In particular, it asserts that ethical restraints may explain path dependency, and that such an ethical path dependency is more likely in times of economic decline than in times of economic growth. Finally, it holds that, in homogeneous societies, ethics can in many respects substitute for good law. [less ▲]

Detailed reference viewed: 82 (2 UL)
See detailEtat des lieux de la démocratie participative dans les Communautés Urbaines de France
Ghamroun, Samer; JUNG ép. PRELLER, Bérénice UL; Manz, Isabelle

Report (2007)

Detailed reference viewed: 84 (12 UL)
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See detailEnjeux de coopération métropolitaine au sein de l’Aire Ligérienne. Synthèse et analyse des documents abordant l’aire ligérienne
Blondel, Cyril UL; Demazière, Christophe; Carrière, Jean-Paul et al

Report (2006)

Detailed reference viewed: 31 (0 UL)
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See detailSomething out of Nothing? Neoclassical Growth and the ‘Trivial’ Steady State
Hakenes, Hendrik; Irmen, Andreas UL

Report (2006)

A common perception about the neoclassical growth model is that an economy devoid of capital cannot evolve to strictly positive levels of output if capital is essential. We challenge this view by positing ... [more ▼]

A common perception about the neoclassical growth model is that an economy devoid of capital cannot evolve to strictly positive levels of output if capital is essential. We challenge this view by positing a broad class of production functions, encompassing the neoclassical production function, that—surprisingly—show that a take-off is possible even though the initial capital stock is zero and capital is essential. Since the marginal product of capital is initially infinite, the “trivial” steady state becomes so unstable that the solution to the equation of motion involves the possibility of a take-off. When it happens, the take-off is spontaneous: there is no causality, not even randomness. [less ▲]

Detailed reference viewed: 56 (1 UL)
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See detailA computational approach to microRNA detection
May, Patrick UL; Bauer, Markus; Köberle, Christian et al

Report (2006)

During the last few years more and more functionalities of RNA have been discovered that were previously thought of being carried out by proteins alone. One of the most striking discoveries was the de ... [more ▼]

During the last few years more and more functionalities of RNA have been discovered that were previously thought of being carried out by proteins alone. One of the most striking discoveries was the de tection of microRNAs, a class of noncoding RNAs that play an important role in post-transcriptional gene regulation. Large-scale analyses are needed for the still increasingly growing amount of sequen ce data derived from new experimental technologies. In this paper we present a framework for the detection of the distinctive precursor structure of microRNAS that is based on the well-known Smith-Wat erman algorithm and various filtering steps. We conducted experiments on real genomic data and we found several new putative hits for microRNA precursor structures. [less ▲]

Detailed reference viewed: 60 (4 UL)
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See detailTHESEUS - Protein Structure Prediction at ZIB
May, Patrick UL; Steinke, Thomas

Report (2006)

THESEUS, the ZIB threading environment, is a parallel implementation of a protein threading based on a multi-queued branch-and-bound optimal search algorithm to find the best sequence-to-structure ... [more ▼]

THESEUS, the ZIB threading environment, is a parallel implementation of a protein threading based on a multi-queued branch-and-bound optimal search algorithm to find the best sequence-to-structure alignment through a library of template structures. THESEUS uses a template core model based on secondary structure definition and a scoring function based on knowledge-based potentials reflecting pairwise interactions and the chemical environment, as well as pseudo energies for homology detection, loop alignment, and secondary structure matching. The threading core is implemented in C++ as a SPMD parallization architecture using MPI for communication. The environment is designed for generic testing of different scoring functions, e.g. different secondary structure prediction terms, different scoring matrices and information derived from multiple sequence alignments. A validaton of the structure prediction results has been done on the basis of standard threading benchmark sets. THESEUS successfully participated in the 6th Critical Assessment of Techniques for Protein Structure Prediction (CASP) 2004. [less ▲]

Detailed reference viewed: 69 (8 UL)
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See detailProcess Reference Model "Mehari"
Asselborn, Jean-Claude; Dagorn, Nathalie; Niederkorn, Philippe et al

Report (2006)

Detailed reference viewed: 52 (0 UL)
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See detailProcess Reference Model "IT Grundschutz"
Asselborn, Jean-Claude; Dagorn, Nathalie; Niederkorn, Philippe et al

Report (2006)

Detailed reference viewed: 42 (0 UL)
See detailFamily-Type Subsistence Incomes
Koulovatianos, Christos UL; Schroeder, Carsten; Schmidt, Ulrich

Report (2006)

Different family types may have a fixed flow of consumption costs, related to subsistence needs. We use a survey method in order to identify and estimate such a fixed component of spending for different ... [more ▼]

Different family types may have a fixed flow of consumption costs, related to subsistence needs. We use a survey method in order to identify and estimate such a fixed component of spending for different families. Our method involves making direct questions about the linkup between aggregate disposable family income and well-being for different family types. Conducting our survey in six countries, Germany, France, Cyprus, China, India and Botswana, we provide evidence that fixed costs of consumption are embedded in welfare evaluations of respondents. More precisely, we find that the formalized relationship between welfare-retaining aggregate family incomes across different family types, suggested by Donaldson and Pendakur (2005) and termed “Generalized Absolute Equivalence Scale Exactness,” is prevalent and robust in our data. We use this relationship to identify subsistence needs of different family types and to calculate income inequality. [less ▲]

Detailed reference viewed: 88 (2 UL)
See detailEuropean Union foreign direct investment yearbook 2006
Hult, Merja; Margherita, Antonia UL; Foltête, Anne et al

Report (2006)

The direct investment pocketbook provides users with analytical aspects of foreign direct investment stocks, flows and income for the European Union. The pocketbook has a simple objective: to provide ... [more ▼]

The direct investment pocketbook provides users with analytical aspects of foreign direct investment stocks, flows and income for the European Union. The pocketbook has a simple objective: to provide political and corporate decision-makers with high quality statistical information on direct investment. [less ▲]

Detailed reference viewed: 53 (4 UL)
See detailInvestment in a Monopoly with Bayesian Learning
Koulovatianos, Christos UL; Mirman, Leonard J.; Santugini, Marc

Report (2006)

We study how learning affects an uninformed monopolist's supply and investment decisions under multiplicative uncertainty in demand. The monopolist is uninformed because it does not know one of the ... [more ▼]

We study how learning affects an uninformed monopolist's supply and investment decisions under multiplicative uncertainty in demand. The monopolist is uninformed because it does not know one of the parameters defining the distribution of the random demand. Observing prices reveals this information slowly. We first show how to incorporate Bayesian learning into dynamic programming by focusing on sufficient statistics and conjugate families of distributions. We show their necessity in dynamic programming to be able to solve dynamic programs either analytically or numerically. This is important since it is not true that a solution to the infinite-horizon program can be found either analytically or numerically for any kinds of distributions. We then use specific distributions to study the monopolist?s behavior. Specifically, we rely on the fact that the family of normal distributions with an unknown mean is a conjugate family for samples from a normal distribution to obtain closed- form solutions for the optimal supply and investment decisions. This enables us to study the effect of learning on supply and investment decisions, as well as the steady state level of capital. Our findings are as follows. Learning affects the monopolist's behavior. The higher the expected mean of the demand shock given its beliefs, the higher the supply and the lower the investment. Although learning does not affect the steady state level of capital since the uninformed monopolist becomes informed in the limit, it reduces the speed of convergence to the steady state. [less ▲]

Detailed reference viewed: 60 (2 UL)
See detailA typed attributed Graph Grammar for syntax-directed editing of UML Sequence Diagrams
Hermann, Frank UL

Report (2006)

Success and efficiency of software and system design fundamentally relies on its models. The more they are based on formal methods the more they can be automatically transformed to execution models and ... [more ▼]

Success and efficiency of software and system design fundamentally relies on its models. The more they are based on formal methods the more they can be automatically transformed to execution models and finally to implementation code. This paper presents model transformation and model integration as specific problem within bidirectional model transformation, which has shown to support various purposes, such as analysis, optimization, and code generation. The main purpose of model integration is to establish correspondence between various models, especially between source and target models. From the analysis point of view, model integration supports correctness checks of syntactical dependencies between different views and models. The overall concept is based on the algebraic approach to triple graph grammars, which are widely used for model transformation. The main result shows the close relationship between model transformation and model integration. For each model transformation sequence there is a unique model integration sequence and vice versa. This is demonstrated by a quasi-standard example for model transformation between class models and relational data base models. [less ▲]

Detailed reference viewed: 66 (4 UL)
See detailTutorial d'installation de la distribution Debian
Varrette, Sébastien UL

Report (2005)

Detailed reference viewed: 28 (0 UL)
See detailIntroduction aux réseaux de tri tolérants aux fautes
Varrette, Sébastien UL

Report (2005)

Detailed reference viewed: 16 (0 UL)
See detailEuropean Union foreign direct investment yearbook 2005
Passerini, Paolo; Margherita, Antonia UL; Kounadis, Vasileios et al

Report (2005)

In the European Union direct investment pocketbook 2005, Eurostat presents and analyses harmonised statistics on FDI flows, stocks and income for the EU as a whole.

Detailed reference viewed: 28 (5 UL)
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See detailCompétitivité de l'économie luxembourgeoise
Bourgain, Arnaud UL; Bley, Laurent; Pieretti, Patrice UL et al

Report (2005)

Detailed reference viewed: 44 (0 UL)
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See detailCompétitivité de l’économie luxembourgeoise 2004
Bourgain, Arnaud UL; Bley, Laurent; Pieretti, Patrice UL et al

Report (2005)

Detailed reference viewed: 29 (1 UL)
See detailNeoclassical Growth and the 'Trivial' Steady State
Hakenes, Hendrik; Irmen, Andreas UL

Report (2005)

If capital is an essential input, the neoclassical growth model has a steady state with zero capital. From this, one is inclined to conclude that an economy starting without capital can never grow. We ... [more ▼]

If capital is an essential input, the neoclassical growth model has a steady state with zero capital. From this, one is inclined to conclude that an economy starting without capital can never grow. We challenge this view and claim that, if the production function satisfies the Inada conditions, a take-off is possible even though the initial capital stock is zero and capital is essential. Since the marginal product of capital is initially infinite, the ‘trivial’ steady state becomes so unstable that the solution to the equation of motion involves the possibility of a take-off, even without capital. When it happens, the take-off is spontaneous; there is no causality. [less ▲]

Detailed reference viewed: 135 (3 UL)
See detailPreferences and the Dynamic Representative Consumer
Koulovatianos, Christos UL

Report (2005)

This paper provides families of time-separable, twice continuously differentiable, and strictly concave utility functions of a group of consumers that are both suffcient and necessary in order to have ... [more ▼]

This paper provides families of time-separable, twice continuously differentiable, and strictly concave utility functions of a group of consumers that are both suffcient and necessary in order to have linear aggregation in a single-commodity-type deterministic dynamic environment, in the presence of consumer wealth-, labor-productivity, and preference heterogeneity, for alternative settings where the rates of time preference can be the same or different across consumers. The employed concept of linear aggregation pertains the existence of a representative consumer with a time-separable utility function. It is proved that when the rates of time preference are choice-independent and heterogeneous across consumers, a representative consumer exists if, and only if, the momentary utility functions of all consumers are exponential. Results are also provided for, (i) common across consumers choice-independent rates of time preference, and, (ii) heterogeneous choice-dependent rates of time preference, and compared with previously identified sufficient conditions for aggregation in the existing literature. [less ▲]

Detailed reference viewed: 88 (1 UL)
See detailThe Effects of Market Structure on Industry Growth: Rivalrous Non-excludable Capital
Koulovatianos, Christos UL; Mirman, Leonard J.

Report (2005)

We analyze imperfect competition in dynamic environments where firms use rivalrous but nonexcludable industry-specific capital that is provided exogenously. Capital depreciation depends on utilization, so ... [more ▼]

We analyze imperfect competition in dynamic environments where firms use rivalrous but nonexcludable industry-specific capital that is provided exogenously. Capital depreciation depends on utilization, so firms influence the evolution of the capital equipment through more or less intensive supply in the final-goods market. Strategic incentives stem from, (i) a dynamic externality, arising due to the non-excludability of the capital stock, leading firms to compete for its use (rivalry), and, (ii) a market externality, leading to the classic Cournot-type supply competition. Comparing alternative market structures, we isolate the effect of these externalities on strategies and industry growth. [less ▲]

Detailed reference viewed: 79 (2 UL)
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See detailEvaluation of the use of new technologies in order to facilitate democracy in Europe
Kies, Raphaël UL; Mendez, Fernando; Schmitter, Philippe et al

Report (2004)

Detailed reference viewed: 93 (1 UL)
See detailOn the Income Dependence of Equivalence Scales
Koulovatianos, Christos UL; Schroder, Carsten; Schmidt, Ulrich

Report (2004)

We suggest a simple survey method for obtaining direct subjective estimates of equivalence scales, also appropriate for testing whether equivalence scales depend on reference-household income. We ... [more ▼]

We suggest a simple survey method for obtaining direct subjective estimates of equivalence scales, also appropriate for testing whether equivalence scales depend on reference-household income. We implement our approach in two countries, Germany and France. In both countries independence of base is rejected. In particular, we find that equivalence scales depend negatively on reference income, an indication of increasing economies of scale in household consumption as living standards go up. Our estimation method is non-parametric, and it allows us to test generalized equivalence-scale exactness, which is not rejected in any of our samples. [less ▲]

Detailed reference viewed: 105 (1 UL)
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See detailExtensive and Intensive Growth in a Neoclassical Framework
Irmen, Andreas UL

Report (2004)

Extensive growth based on the expansion of inputs is likely to be subject to diminishing returns. Therefore it is often viewed as having no effect on per capita magnitudes in the long run. This Paper ... [more ▼]

Extensive growth based on the expansion of inputs is likely to be subject to diminishing returns. Therefore it is often viewed as having no effect on per capita magnitudes in the long run. This Paper argues that periods of extensive growth through capital accumulation may be a precursor to periods of intensive growth during which output per unit of input grows through endogenous technical change. Such a sequence of stages of development occurs as capital accumulation affects the incentives to engage in labour-saving technical change. A steady rise in the capital-labour ratio affects the relative scarcity of factors of production, their (expected) relative price, and induces innovation investments. [less ▲]

Detailed reference viewed: 106 (5 UL)
See detailEndogenous Public Policy and Long-Run Growth
Koulovatianos, Christos UL; Mirman, Leonard J.

Report (2004)

. We study the determinants of voting outcomes on the provision of public consumption through marginal income taxes in the context of the simple linear growth model. We focus on how the dynamic ... [more ▼]

. We study the determinants of voting outcomes on the provision of public consumption through marginal income taxes in the context of the simple linear growth model. We focus on how the dynamic politicoeconomic equilibrium maps the economic fundamentals to policies and long-run growth. We find that in a deterministic growth environment voters internalize, although imperfectly, the deadweight losses of taxation and vote for lower taxes when the productivity of capital is higher. Therefore, the politicoeconomic channel reinforces the positive role of productivity for growth. In a stochastic environment, we find that if business cycles are driven by productivity shocks in the endogenous growth framework, equilibrium policies imply that taxes should fall in high growth periods and rise in low-growth periods. In line with existing evidence, our model predicts procyclical public consumption and countercyclical public consumption GDP shares. [less ▲]

Detailed reference viewed: 84 (1 UL)
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See detailCompétitivité de l’économie luxembourgeoise 2003
Bourgain, Arnaud UL; Cardi, Olivier; Pieretti, Patrice UL et al

Report (2004)

Detailed reference viewed: 38 (0 UL)
See detailThe Effects of Market Structure on Industry Growth
Koulovatianos, Christos UL; Mirman, Leonard J.

Report (2004)

We study the behavior of firms in an imperfectly competitive environment in which firms influence the evolution of the stock of capital equipment. Our model enables us, using analytical characterizations ... [more ▼]

We study the behavior of firms in an imperfectly competitive environment in which firms influence the evolution of the stock of capital equipment. Our model enables us, using analytical characterizations, to show the effect of key ingredients of dynamic competition on firm strategies and industry dynamics in addition to the usual static interaction. These effects are the static market externality (implicit in the static Cournot Equilibrium) as well as the dynamic market externality due to the effect on the market outputs of a capital stock and a dynamic externality that stems from the competition between firms for the capital stock. These strategic elements justify our conclusions, based on the study of four market structures, for the link between industrial organization and industry growth [less ▲]

Detailed reference viewed: 117 (3 UL)
See detailCombining multiple viewpoints on genetically modified foods
König, Ariane UL

Report (2004)

Detailed reference viewed: 87 (10 UL)
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See detailLes modes opéatoires de la cryptographie symétrique
Schiltz, Jang UL

Report (2003)

Detailed reference viewed: 37 (0 UL)
See detailRedistributive Policies through Taxation: Theory and Evidence
GRANT, Charles; Koulovatianos, Christos UL; MICHAELIDES, Alexander et al

Report (2003)

Increasing marginal tax rates and making payments to the poor reduce inequality and introduce savings dis-incentives. Using a heterogeneous agent model with incomplete markets, we show that higher taxes ... [more ▼]

Increasing marginal tax rates and making payments to the poor reduce inequality and introduce savings dis-incentives. Using a heterogeneous agent model with incomplete markets, we show that higher taxes (and transfers) decrease consumption inequality but also mean savings and mean consumption. This demonstrates the trade-off between equity and efficiency. These theoretical predictions are tested by exploiting differences in tax rates across US states. Using two surveys, the Consumer Expenditure Survey and the Current Population Survey, we show that the empirical evidence supports the theory, and that there is a comparatively small fall in efficiency for a given gain in equity associated with higher taxation. [less ▲]

Detailed reference viewed: 39 (1 UL)
See detailR\&D Investment, Market Structure, and Industry Growth
Koulovatianos, Christos UL; Mirman, Leonard J.

Report (2003)

We study how alternative market structures influence market supply and R\&D investment decisions of firms operating in dynamic imperfectly competitive environments. Firms can reduce their future ... [more ▼]

We study how alternative market structures influence market supply and R\&D investment decisions of firms operating in dynamic imperfectly competitive environments. Firms can reduce their future production cost through R\&D investment today, which is the engine of endogenous industry growth. Our framework enables us to identify key strategic ingredients in firms dynamic competitive behavior through analytical characterizations. These ingredients are a static market externality, stemming from the standard oligopolistic Cournot competition, a dynamic externality that arises due to knowledge spillovers, and a dynamic market externality that comes from the interaction of knowledge spillovers with future market oligopolistic competition that firms internalize while making decisions. We isolate the impact of each strategic ingredient by comparing four alternative market structures. [less ▲]

Detailed reference viewed: 82 (1 UL)
See detailThe Effects of Market Structure on Industry Growth
Koulovatianos, Christos UL; Mirman, Leonard J.

Report (2003)

We study the behavior of firms in an imperfectly competitive environment in which firms influence the evolution of the stock of capital equipment. Our model enables us, using analytical characterizations ... [more ▼]

We study the behavior of firms in an imperfectly competitive environment in which firms influence the evolution of the stock of capital equipment. Our model enables us, using analytical characterizations, to show the effect of key ingredients of dynamic competition on firm strategies and industry dynamics in addition to the usual static interaction. These effects are the static market externality (implicit in the static Cournot Equilibrium) as well as the dynamic market externality due to the effect on the market outputs of a capital stock and a dynamic externality that stems from the competition between firms for the capital stock. These strategic elements justify our conclusions, based on the study of four market structures, for the link between industrial organization and industry growth. [less ▲]

Detailed reference viewed: 67 (3 UL)
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See detailCompétitivité de l’économie luxembourgeoise 2002
Bourgain, Arnaud UL; Cardi, Olivier; Pieretti, Patrice UL et al

Report (2003)

Detailed reference viewed: 41 (0 UL)
See detailZelfbeeld en gedrag van kinderen met spina bifida en hydrocephalus in Nederland
de Wit, O; Pit-Ten Cate, Ineke UL; Stevenson, J

Report (2003)

Detailed reference viewed: 62 (0 UL)
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See detailNational Minimum Wages, Capital Mobility and Global Economic Growth
Irmen, Andreas UL; Wigger, Berthold

Report (2002)

How do national minimum wages affect global economic growth? We address this question in a two-country endogenous growth model with capital mobility that emphasizes a link between wages, savings and ... [more ▼]

How do national minimum wages affect global economic growth? We address this question in a two-country endogenous growth model with capital mobility that emphasizes a link between wages, savings and growth. We identify the conditions on technology and national preferences that determine whether national minimum wages are a stimulus or an obstacle to growth. Technology matters because it determines the functional distribution of global income as well as output effects associated with the emergence of national unemployment due to minimum wages. Interestingly, differences in national savings propensities do not only affect the strength of the growth effect associated with minimum wages but may even determine its direction. [less ▲]

Detailed reference viewed: 79 (2 UL)
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See detailNational Minimum Wages, Capital Mobility and Global Economic Growth
Irmen, Andreas UL; Wigger, Berthold

Report (2002)

How do national minimum wages affect global economic growth? We address this question in a two-country endogenous growth model with capital mobility that emphasizes a link between wages, savings and ... [more ▼]

How do national minimum wages affect global economic growth? We address this question in a two-country endogenous growth model with capital mobility that emphasizes a link between wages, savings and growth. We identify the conditions on technology and national preferences that determine whether national minimum wages are a stimulus or an obstacle to growth. Technology matters because it determines the functional distribution of global income as well as output effects associated with the emergence of national unemployment due to minimum wages. Interestingly, differences in national savings propensities do not only affect the strength of the growth effect associated with minimum wages but may even determine its direction. [less ▲]

Detailed reference viewed: 82 (1 UL)
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See detailCompétitivité de l’économie luxembourgeoise 2001
Bourgain, Arnaud UL; Pieretti, Patrice UL; Schuller, Guy

Report (2002)

Detailed reference viewed: 32 (1 UL)
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See detailRSA - bases mathématiques
Schiltz, Jang UL

Report (2002)

Detailed reference viewed: 13 (0 UL)
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See detailTrade Union Objectives and Economic Growth
Irmen, Andreas UL; Wigger, Berthold

Report (2001)

A trade union whose purpose is to raise wages above the competitive level may foster economic growth if it succeeds in shifting income away from the owners of capital to the workers and if the workers ... [more ▼]

A trade union whose purpose is to raise wages above the competitive level may foster economic growth if it succeeds in shifting income away from the owners of capital to the workers and if the workers' marginal propensity to save exceeds the one of capitalists. We make this point in an overlapping generations framework with unionized labor. Considering a monopoly union which cares for wages and employment, we determine a range of trade union objectives and characterize the aggregate technology so that the union's policy spurs per capita income growth and increases welfare of all generations that adhere to the union. [less ▲]

Detailed reference viewed: 75 (1 UL)
See detailThe Workings of Scientific Communities
Cowan, Robin; Jonard, Nicolas UL

Report (2001)

No abstract is available for this item.

Detailed reference viewed: 69 (0 UL)
See detailDe pedagogische taak van de sportvereniging
Biesta, Gert UL; Stams, G. J. J. M.; Dirks, E. et al

Report (2001)

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See detailWage Growth, Productivity Growth, and the Evolution of Employment
Hellwig, Martin F.; Irmen, Andreas UL

Report (2001)

This Paper studies the impact of wage growth on the evolution of employment in an intertemporal general-equilibrium model with endogenous productivity growth. For real wage growth above laissez-faire ... [more ▼]

This Paper studies the impact of wage growth on the evolution of employment in an intertemporal general-equilibrium model with endogenous productivity growth. For real wage growth above laissez-faire levels, we obtain steady-state equilibria in which productivity grows at the same rate as wages, the real interest rate is below the laissez-faire level, and so is the common growth rate of consumption, demand, and output. In these steady-state equilibria employment contracts at a constant rate equal to the difference between the growth rates of productivity and output. This contrasts with the view that equality of wage growth and productivity growth is a condition for constant employment. [less ▲]

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See detailCompétitivité de l’économie luxembourgeoise 2000
Bourgain, Arnaud UL; Pieretti, Patrice UL; Schuller, Guy

Report (2001)

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See detailWage Growth, Productivity Growth, and the Evolution of Employment
Hellwig, Martin F.; Irmen, Andreas UL

Report (2001)

This Paper studies the impact of wage growth on the evolution of employment in an intertemporal general-equilibrium model with endogenous productivity growth. For real wage growth above laissez-faire ... [more ▼]

This Paper studies the impact of wage growth on the evolution of employment in an intertemporal general-equilibrium model with endogenous productivity growth. For real wage growth above laissez-faire levels, we obtain steady-state equilibria in which productivity grows at the same rate as wages, the real interest rate is below the laissez-faire level, and so is the common growth rate of consumption, demand, and output. In these steady-state equilibria employment contracts at a constant rate equal to the difference between the growth rates of productivity and output. This contrasts with the view that equality of wage growth and productivity growth is a condition for constant employment. [less ▲]

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See detailCompétitivité de l’économie luxembourgeoise 1999
Bourgain, Arnaud UL; Pieretti, Patrice UL; Schuller, Guy

Report (2000)

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See detailEmotionen aus intentionalitätstheoretischer Sicht: Implikationen für psychologische Forschungsprogramme
Boll, Thomas UL

Report (1999)

The paper presents the basic assumptions of an intentionality theory-based view of emotions in the philosophy of mind and its implications for psychological research programs. Intentionalistic view ... [more ▼]

The paper presents the basic assumptions of an intentionality theory-based view of emotions in the philosophy of mind and its implications for psychological research programs. Intentionalistic view conceives emotions as complex mental states with semantic content, especially as interconnected beliefs and desires. Particular types of emotions (e.g., anger, joy) are regarded as structures of beliefs and desires with abstract semantic contents. Different variants of one emotion type (e.g., anger about self, anger about others) are individuated according to their concrete semantic contents. Relations between emotions and other intentional phenomena are viewed as inferential relations. Relations between objective states of affairs and emotions are seen as representational relations. Advantages of this view are a more adequate conceptualization of emotional phenomena, options for an analysis of emotions differentiated by their objects, elaborations of cognitive and motivational theories of emotion, and a structural model of the causes and consequences of emotional responses to complex situations. These implications are evaluated with reference to heuristic gains and methodological requirements. [less ▲]

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