Games and Economic Behavior
Выпуск N2 за 1999 год
Опубликовано на портале: 31-01-2007Debraj Ray, Rakesh V. Vohra Games and Economic Behavior. 1999. Vol. 26. No. 2. P. 286-336.
Consider an environment with widespread externalities, and suppose that binding agreements can be written. We study coalition formation in such a setting. Our analysis proceeds by defining on a partition function an extensive-form bargaining game. We establish the existence of a stationary subgame perfect equilibrium for such a game. Our main results are concerned with the characterization of equilibrium coalition structures. We develop an algorithm that generates (under certain conditions) an equilibrium coalition structure. Our characterization results are especially sharp for symmetric partition functions. In particular, we provide a uniqueness theorem and apply our results to a Cournot oligopoly.