We discuss long-run growth in an economy which is subject to aggregate productivity shocks affecting all factors of production. We demonstrate that the presence of labor income risk unambiguously is an important determinant of long-run expected growth. The issue of dynamic inefficiency of the...

This paper discusses a two-sector neoclassical overlapping generations economy with intermediate and final goods in the spirit of Romer (1990). The risk averse agents engage in one of two alternative occu pations: either firrm-ownership in the intermediate goods sector, char acterized by...

This paper explores the question whether boundedly rational agents learn to behave optimally when asked to voluntarily contribute to a public good. The decision process of individuals is described by an Evolutionary Algorithm. We analyze the learning process of purely and impurely altruistic...

This paper analyzes growth and welfare effects of income taxation in a stochastic endogenous growth model with externalities in human-capital accumulation. The government participates in individual income risks by the collection of a flat-rate income tax that affects the mean and the variance of...

Der vorliegende Beitrag analysiert den Einfluß von aggregierten Produktivitätsschocks auf die intertemporale Entscheidung risikoaverser Agenten. Dabei stehen insbesondere die Auswirkungen auf das langfristige Wachstum der Ökonomie im Vordergrund der Betrachtungen. Es wird gezeigt, daß neben...

This paper investigates the effects of monopolistic competition on entrepreneurial riskRtaking in a general equilibrium model. In this context, occupational choice of risk averse agents is biased towards rm ownership. In this case, the inef ciencies due to the presence of nonRdiversi able risk...

Dieser Beitrag bietet eine Einführung in eine Gruppe moderner Algorithmen, den sogenannten evolutionären Optimierungsverfahren. Anhand eines einfachen Beispiels wird die grundsätzliche Funktionsweise dieser Algorithmen skizziert. Darüberhinaus wird ein Überblick über die...

This paper employs a stochastic endogenous growth model with productive government expenditure to analyze the macroeconomic effects of income taxation. We demonstrate that in the presence of capital and income risk the impact of taxation on consumption choice as well as on economic growth is...

Dieser Beitrag gibt einen Überblick über Ansatzpunkte und Möglichkeiten zur Integration von Lernprozessen in volkswirtschaftliche Fragestellungen. Es werden alternative Methoden vorgestellt, individuelle aber auch gesellschaftliche Lernenvorgänge in ökonomischen Modellen zu erfassen.