Standard models of collusion require that all firms are forward-looking and strategic. When one firm displays naive behavior—i.e., when it is myopic, memoryless, or non-strategic—typical collusive strategies cannot be supported in equilibrium. Motivated by the increasing adoption of...

We analyze strategic leaks due to spying out a rival’s bid in a first-price auction. Such leaks induce sequential bidding, complicated by the fact that the spy may be a counterspy who serves the interests of the spied at bidder and reports strategically distorted information. This ambiguity...

This paper analyses the incentives to adopt cost-reducing technology by firms in a horizontally differentiated industry. In our model there are several suppliers of a new technology. The extent of the cost reduction depends on the quality of the new technology. A firm has to buy the technology...

This paper analyses the incentives to adopt cost-reducing technology by firms in a horizontally differentiated industry. In our model there are several suppliers of a new technology. The extent of the cost reduction depends on the quality of the new technology. A firm has to buy the technology...

Game-theoretic models are frequently employed to study strategic interaction between agents. Empirical research has focused on estimating payoff functions while maintaining strong assumptions regarding the information structure of the game. I show how to relax informational assumptions to...

In this paper, we study an imperfect monitoring model of duopoly under similar settings as in Green and Porter (1984), but here firms do not know the demand parameters and learn about them over time through the price signals. We investigate how a deviation from rational expectations affects the...

Individual contributions by infringing firms to the compensation of cartel victims must reflect their “relative responsibility for the harm caused” according to EU legislation. Several studies have argued that the theoretically best way to operationalize this norm is to apply the Shapley...

We examine tippy network markets that accommodate price discrimination. The analysis shows that when a mild equilibrium refinement, the monotonicity criterion, is adopted, network competition may have a unique subgame-perfect equilibrium regarding the winner's identity; the prevailing brand may...

Cartels can severely harm social welfare. Competition authorities introduced leniency rules to destabilize existing cartels and hinder the formation of new ones. Empirically, it is difficult to judge the success of these measures because functioning cartels are unobservable. Existing...