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 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...