This Paper shows that the inability of regulators to commit to long-term contracts is irrelevant when there is some competition between regulated firms and when firms’ private information is correlated. This sharply contrasts with the dynamic of regulation without such competition. The Paper...

Abstract This paper studies the efficiency of collusion between supervisors and supervisees. Building on Tirole (1986)'s results that deterring collusion with infinitely risk averse supervisors is impossible, while it is costless to do so under risk neutrality, we develop here a theory of...