We study the percentage of welfare losses (PWL) yielded by imperfect competition under product differentiation. When demand is linear, if prices, outputs, costs and the number of firms can be observed, PWL is arbitrary in both Cournot and Bertrand equilibria. If in addition, the elasticity of...

This book provides a complete and up-to-date treatment of the Theories of Imperfectly Competitive Markets. In its five chapters, the book deals with Nash equilibrium in aggregative games, comparative statics in aggregative games, welfare and Cournot competition, monopolistic competition and two...

In this paper we study the theoretical plausibility of the conjecture that inflation arises because imperfectly competitive markets (ICM in the sequel) translate cost pushes in large price increases. We define two different measures of inflation transmission. We compared these measures in...

This book presents the theory of Industrial Organization in a unified and concise way. It presents the main models and results in the area, using game theory as a unifying theoretical background. Besides corrections and new sections, the new edition contains a new chapter on games of incomplete...