A positive relationship between firm size and product diversification is a long-standing stylized fact. However, so far there is no appropriate theoretical model to explain the underlying forces of this observation. This paper analyzes an oligopoly model with asymmetric multiproduct frms, which...

Incumbent firms have two basic possibilities to improve their competitive position in the product market: investment in R&D and the creation of entry barriers to the disadvantage of potential rivals, e.g. through lobbying activities, campaign contributions, bribes or the adoption of incompatible...

This paper examines the impact of capital market integration (CMI) on higher education and economic growth. We take into account that participation in higher education is non-compulsory and depends on individual choice. Integration increases (decreases) the incentives to participate in higher...

This paper develops a model with multiple market locations in which the quality of intangible assets of firms, provided by management, determines the firms. performance. Despite an ex ante symmetry of potential entrants, the equilibrium assignment of heterogeneous managerial skills to firms...

This paper develops a two-sector general-equilibrium model in which firms in the primary economy have to create workplaces prior to production and product-market competition. For this, we introduce the endogenous sunk-cost approach with two-stage decisions of firms from IO in the macro labor...

In this paper, it is illustrated in a simple balanced growth model with redistributive capital income taxation that it is generally misleading to attribute welfare significance to the preferences of a representative consumer, if lump sum redistribution is unfeasible. This result holds even if a...

Die bisherigen Daten scheinen auf eine lediglich begrenzte Einkommenskonvergenz zwischen Ost- und Westdeutschland anstatt auf eine Angleichung in absehbarer Zeit hinzudeuten. In diesem Beitrag konzentrieren sich die Autoren auf die Frage, ob in Deutschland zukünftig vollständige Konvergenz der...

The international migration of high-skilled workers may trigger productivity effects at the macro level such that the wage rate of skilled workers increases in host countries and decreases in source countries. We exploit data on international bilateral migration flows and provide evidence...

In this paper, we provide an overview of the relationship between international migration and international trade as well as capital movements. After taking a brief historical perspective, we first investigate migration flows between two countries in a static, neoclassical context. We allow for...