We propose a stylised dynamic model to understand the role of social networks in the phenomenon we call "globalization." This term refers to the process by which even agents who are geographically far apart come to interact, thus being able to overcome what would otherwise be a fast saturation...

In this paper, we summarize the economic literature on non-price effects of mergers and acquisitions (M&As). Specifically, we discuss the effects of M&As on innovation, product variety, and sustainability. Although the relationship is theoretically ambiguous, the vast majority of ex-post...

Our analysis starts from the observation that with progressive consolidation in retailing and the spread of private labels, retailers increasingly take over functions in the vertical chain. Focusing on innovation, we isolate various reasons for why when a large retailer grows in size, this can...

This Paper examines the effect of price competition on innovation, market structure and profitability in R&D-intensive industries. The theoretical predictions are tested using UK data on the evolution of competition, concentration, innovation counts and profitability over 1952-77. The...

This paper analyzes the impact of R&D subsidies on incumbent firms to introduce new goods. We are especially interested in investigating various consequences of government subsidies for R&D, provided to firms that o.er products of di.erent qualities. This study examines the incentives of...

We study the potential loss in social welfare and changes in incentives to invest in R&D that result when the market leading firm is deprived of its position. We show that under plausible assumptions like free entry or repeated market interactions there is a social value of market leadership and...

Diese Studie wurde von Kai Sülzle während seiner Tätigkeit am ifo Institut für Wirtschaftsforschung verfasst. Sie wurde im April 2007 fertig gestellt und zur Promotion an der Volkswirtschaftlichen Fakultät der Technischen Universität Dresden angenommen, wo sie am 26. Juni 2007 erfolgreich...

This paper analyzes a model of oligopolistic competition with ongoing investment. It incorporates the following models as special cases: incremental investment, patent races, learning-by-doing, and network externalities. We investigate circumstances under which a firm with low costs or high...

We investigate the relationship between competition and innovation using a dynamic oligopoly model that endogenizes both the long-run innovation rate and market structure. We use the model to examine how various determinants of competition, such as product substitutability, entry costs, and...