We examine a simple model of collusion under a single-object second-price auction. Under the appropriate parameter conditions, in particular as long as collusion is neither too easy, nor too difficult, we find that the optimal policy involves both an effective ceiling, as well as a reserve price.

The English auction is susceptible to tacit collusion when post-auction inter-bidder resale is allowed. We show this by constructing equilibria where, with positive probability, one bidder wins the auction without any competition and divides the spoils by optimally reselling the good to the...

In November 2001, a TV program showed that many large Dutch construction companies participated in price fixing. We analyze how one such company, Heijmans, reacted to the reputation crises after the TV program by introducing a code of conduct. We present the outcomes of a questionnaire survey...

In many markets, empirical evidence suggests that positive production cost shocks are transmitted more quickly and fully to final prices than negative ones. This article explains asymmetric price adjustment caused by firms imperfectly colluding on supra-competitive price levels. While positive...

This paper derives conditions under which reputation enables certifiers to resist capture. These conditions alone have strong implications for the industrial organization of certification markets: 1) Honest certification requires high prices that may even exceed the static monopoly price. 2)...

This paper considers a principal-agent relationship and explores the incentive provision when the agent's performance cannot be verified. It contrasts two alternatives for the principal to provide incentives: (i) to subjectively evaluate the agent's performance; and (ii), to delegate this task to...

This paper proposes a new approach of fighting collusion in tournaments which sheds light on the principle of divide and conquer: the principal can benefit from manipulating information revelation, by which he brings asymmetric information between the agents and thus creates a distortion of...

We reconsider Tirole's framework of a three-tier principal-agent problem, in which he has shown that an incentive problem is caused by the possibility of monetary side payments between the agent and the middle -level supervisor. We consider the case where monetary transfers are not possible, but...