The paper is concerned with the implications of imperfect competition and endogenous determination of the number of firms for endogenous fluctuations in the simple overlapping generations model. If firms have market power on output markets and there is free entry, such that the number of firms...

We show that there is a unique correlated equilibrium, identical to the unique Nash equilibrium, in the classic Bertrand oligopoly model with homogenous goods. This provides a theoretical underpinning for the so-called "Bertrand paradox" and also generalizes earlier results on mixed-strategy...

Consumers have bounded perception and treat similar goods as homogeneous. The interaction between this bias and the structure of firms is studied in a vertically differentiated duopoly with market entry. With fixed costs of quality, natural monopoly and entry deterrence occurs at lower entry...

I consider a two period model with an incumbent firm and a potential entrant each of whom produces a homogeneous good. There is a demand uncertainty: it can be high or low and it realizes in the second period. The question I ask: How by choosing capacity at an earlier period of actual production...

The authors characterize the interplay between firms' decisions in terms of either horizontal or vertical product differentiation and their ensuing price behavior, be that collusive or not. They prove the existence of a non-monotone relationship between firms' decisions at the development stage...

This paper tackles the issue of choosing roles in duopoly games. First, it is shown that the two necessary (and sufficient, if both satisfied) conditions for sequential play to emerge at equilibrium are that both leader and follower are at least weakly better off than under simultaneous play....

We consider oligopolistic markets in which the notion of shareholders' utility is well-defined and compare the Bertrand-Nash equilibria in case of utility maximization with those under the usual profit maximization hypothesis. Our main result states that profit maximization leads to less price...

We use the two-factor, two-sector, two-country model of Melvin and Warne (1973) and Markusen (1981), in which the production of one good is monopolized in each country, in order to investigate the role of the price normalization. We illustrate several puzzling effects that occur if the price...

Two firms selling a homogenous product to two types of buyers are involved in a sequential pricing game with zero costs. The pricing strategy available involves a fixed price and a royalty. It is shown that there exists a unique subgame perfect equilibrium with positive profits to both firms if...

For market games which feature multiple posts for each commodity we show the following: (i) the 'law of one price' obtains asymptotically as the number of market participants becomes infinite, irrespectively of the characteristics of market participants; (ii) as the number of markets increases...