Preisgarantien im Einzelhandel scheinen auf den ersten Blick Ergebnis eines intensiven Wettbewerbs zu sein. Theoretische Analysen und empirische Studien zeigen jedoch, dass dies in der Regel nicht der Fall ist. Preisgarantien und hier vor allem Garantien, bei denen mehr als die Differenz zu...

This paper summarizes the economic principles of European state aid control. We start with a discussion of the economic justification for state aid control, including the definition of state aid in European law and exceptions to the general ban of state aid. We then explore the motives for...

This paper analyses a large database on inter-firm R&D cooperation formed in the pharmaceutical biotechnology industry during the period 1985 - 1998. The results indicate that network size largely grows, whereas the density of the network declines during the periods. In the network analysis that...

The paper deals with the competitive effects of price guarantees in a spatial duopoly where consumers can search for lower prices but have to incur hassle costs if they want to claim a price guarantee. It is shown that symmetric equilibria with and without price guarantees exist but price...

This paper analyses the inter-firm R&D network formed in the pharmaceutical biotechnology industry during the 1990s from different perspectives: theoretical network formation, firm's structural positions and its collaborations at the entire network level, and the determinants for firm's...