This Paper characterises the unique Markov equilibrium in the sequential move, finite horizon pricing duopoly with discounting. Simple, short cycles repeat until the last two periods. For discount factors above 0.75488, there are three-period reaction function cycles and below 0.75488,...

We present a two-firm model of predation under complete information, based on different discount factors, and integrate it with a model of collusion. Competition, collusion and predation are seen as alternative strategies. The basic conclusions are that t

This paper analyzes price competition between market makers who set costly capacity constraints before they intermediate between producers and consumers. The key finding is that the unique perfect equilibrium outcome is Cournot if capacity is costly and rationing efficient. This result is...

I present a model of competition between two market makers who are horizontally differentiated. I first show that absent a search market for buyers and sellers, there is a continuum of symmetric equilibria. These equilibria are payoff equivalent for market makers, but affect buyers' and sellers'...

What is the optimum mix of trade policy instruments? Usually governments choose among such instruments as quotas, tariffs, explicit or implicit subsidies. The goal of the project is to consider the possibility of a simultaneous use by the government of quotas (and corresponding license fees) and...

We show that games of strategic substitutes (or complements) with aggregation are "pseudo-potential" games, and therefore possess Nash equilibria in pure strategies. Our notion of aggregation is quite general and enables us to take a unified view of several disparate models.

The choice between quantity and price in order to stabilize collusion is modeled here. It is shown that this relocates the prisoners’ dilemma backwards, from the market stage to the stage where the market variable is chosen in order to sustain collusion, and where discount rates appear as the...

We compare simultaneous versus sequential moves in R&D decisions within an asymmetric R&D/Cournot model with linear demand (for differentiated products), general R&D costs, and spillovers. Simultaneous play and sequential play (with and without a specified leader) can emerge as appropriate...

This paper discusses the value of information in games with state contingent payoffs, using a simple two-stage duopoly model. In the first stage, each duopolist simultaneously chooses whether to observe the market demand, which is either high or low. The second stage game is an ordinary...

We consider different patterns of infinite technological adoption choices by firms in a Bertran duopoly. Every period, technological progress provides a sequence of cost reducing innovations. The equilibrium concept is Markov Perfect Equilibrium. We analyse conditions for which equilibrium...