We will call a game a reachable (pure strategy) equilibria game if starting from any strategy by any player, by a sequence of best-response moves we are able to reach a (pure strategy) equilibrium. We give a characterization of all finite strategy space duopolies with reachable equilibria. We...

We consider a multi-stage game where firms first choose product quality and then compete for sales in the product market. We show how the equilibrium qualities are influenced by timing (sequential or simultaneous) of quality choices depends on the type of competition (Bertrand or Cournot) in the...

We study firms' incentives to acquire private information in a setting where subsequent competition leads to firms' later signaling their private information to rivals. Due to signaling, equilibrium prices are distorted, and so while firms benefit from obtaining more precise private information,...

We study firms' incentives to acquire private information on cost in a duopoly signaling game. Firms first choose how much to invest in information acquisition and then engage in dynamic price competition. In equilibrium firms acquire too little information from the perspective of industry...

Endogenous timing can help to derive the time structure of decision making instead of assuming it as exogenously given. In our study we consider a homogeneous market where, like in the model of Kreps and Scheinkman (1983), sellers determine sales capacities before prices. Sellers must serve...

A well established belief both in the game-theoretic IO and in policy debates is that market concentration facilitates collusion. We show that this piece of conventional wisdom relies upon the assumption of profit-seeking behaviour, for it may be reversed when firms pursue other plausible goals....

A widely accepted view says that Folk Theorem holds in the repeated Cournot oligopoly games with imperfect price signals satisfying generic conditions. We show that this view is not justified. We argue that maintaining asymptotic joint monopoly outcome is not possible with noisy price signals....

This paper examines a model of duopoly firms selling to an exogenously formed buyer group consisting of members with heterogeneous preferences. Two research questions are addressed: (1) when is it optimal for a buyer group to commit to exclusive purchase from a single seller, and (2) how does...

In the paper we develop the concept of social evolution and aspiration learning in duopolistic industries. Social learning is analysed in the framework of the model in which aspirations are linked to the normal profit of the economy. The general algorithm of social evolution and learning for...

The Cournot model makes assumptions about the knowledge of the players, which can lead to counterintuitive results when extending the basic model. Closed-loop equilibria and models with consistent conjectural variations are problematic in that they reduce or eliminate economic rents while the...