Multimarket and multiproject collusion - Why European integration may reduce intra-community competition

Marc Van Wegberg*, Arjen Van Witteloostuijn, Michiel Roscam Abbing

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


If firms meet in a number of markets, they may respond to an action in one market by reacting in another market. Fear for such retaliation may induce multimarket firms to collude across markets. The paper assesses available theoretical and empirical evidence on the multimarket collusion theory. Moreover, the paper suggests that the theory can be fruitfully applied in the context of European integration. The focus is on collusion by firms which meet in product markets as well as in joint R&D projects. A model develops three propositions, which shed light on the subsequently provided (tentative) evidence on multidimensional contact in an integrating Europe. The discussion may serve as a framework for future research into both the theoretical and the empirical domain with applications to the issue of European integration.

Original languageEnglish
Pages (from-to)253-285
Number of pages33
JournalDe Economist
Issue number3
Publication statusPublished - 1 Aug 1994
Externally publishedYes

Cite this