Collusion sustainability depends on firms' ability to impose sufficiently severe punishments in the event of deviation from the collusive rule. We extend results from the literature on optimal collusion by investigating the role of a limited liability constraint. We examine all situations in...

This note establishes that two propositions in the theory of private common agency by Laussel and Le Breton (J. Econ. Theory 100 (2001) 93) extend to a larger class of games, in which each principal's gross monetary payoff does not depend exclusively on the quantities she receives. A new result...

In sequential screening problems it is found that, under some regularity conditions, local incentive compatibility constraints are sufficient for implementability. However, this follows from the assumption that the possible distributions of the unknown variable satisfy either first-order...

Riordan and Sappington (JET, 1988) show that in an agency relationship in which the agent's type is correlated with a public ex post signal, the principal may attain first best (full surplus extraction and efficient output levels) if the agent is faced with a lottery such that each type is...

We study a sequential screening problem in which the information structure is characterized by neither first-order stochastic dominance (FOSD) nor mean-preserving spread (MPS). Specifically, we refer to a procurement contract with privately known mean and spread of cost distribution. The...