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Self Regulation and Government Oversight, Review of Economic Studies


Self regulation is a feature of a number of professions. For example, the government delegates aspects of financial market regulation to self-regulatory organizations (SROs) like the New York Stock Exchange and the National Association of Securities Dealers. We analyze one regulatory task of an SRO, enforcing antifraud rules so agents will not cheat customers. Specifically, we model contracting/enforcement as a two-tier problem. An SRO chooses its enforcement policy: the likelihood an agent is investigated for fraud and a penalty schedule. Given an enforcement policy, agents compete by offering contracts that maximize customers' expected utility. We assume the SRO's objective is to maximize the welfare of its members, the agents. We show that the SRO chooses a more lax enforcement policy meaning less frequent investigations than what customers would choose. A general conclusion is that control of the enforcement policy governing contracts confers substantial market power to a group of otherwise competitive agents. We also investigate government oversight of the self-regulatory process. The threat of government enforcement leads to more enforcement by the SRO, just enough to preempt any government enforcement.




Peter DeMarzo, Michael J. Fishman, Kathleen Hagerty

Date Published



DeMarzo, Peter, Michael J. Fishman, and Kathleen Hagerty. 2005. Self Regulation and Government Oversight. Review of Economic Studies.(3): 687-706.


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