The competitive effect of international market integration in industries with imperfect competition is of great policy interest. This paper focuses on the link between monopolization and market segmentation. It presents a model of multi-market entry deterrence with or without market commitments....

The classical price (quantity) discrimination model relies on the assumption that the consumers can neither buy more than one bundle each, nor resell the goods to each other. This assumption is lifted. In a two-type context, the consumers' set strategy is enlarged, first to allow for multiple...

This paper investigates the determinants of the structure of the banking industry by fitting a monopolistic competition model to a sample of banks drawn from eight EEC countries over 1989-1993. In the theoretical model, banks decide strategically both entry and the branching size of their...

It is shown that even when vertical integration leads to an upstream monopoly, welfare can improve if the ex ante market share of the merging firm is large. This result is obtained in a Cournot-Nash equilibrium context with asymmetric marginal costs of production.