University of Michigan Legal Working Paper Series

University of Michigan John M. Olin Center for Law & Economics Working Paper Series

 

Plea Bargains Only for the Guilty

Oren Gazal, University of Michigan Law School
Oren Bar-Gill, Harvard Law School, John M. Olin Center for Law, Economics and Business; and Harvard University, The Society of Fellows

Abstract

A major concern with plea bargains is that innocent defendants will be induced to plead guilty. This paper argues that the law can address this concern by providing prosecutors with incentives to select cases in which the probability of guilt is high. By restricting the permissible sentence reduction in a plea bargain the law can preclude plea bargains in cases where the probability of conviction is low (L cases). The prosecutor will therefore be forced to – (1) select fewer L cases and proceed to trial with these cases; or (2) select more cases with a higher probability of conviction (H cases) that can be concluded via a less-costly plea bargain. As long as the probability of conviction is positively correlated with the probability of guilt, this selection-of-cases effect implies a reduced number of innocent defendants that accept plea bargains. We argue that the Federal Sentencing Guidelines in fact achieve, albeit inadvertently, this socially desirable selection effect. We further argue that more limited discretion in sentencing facilitates the selection-of-cases effect. In this respect, the Federal Guidelines are superior to some of the state-level guidelines that leave considerable room for discretion in sentencing.

Subject Area

Law and Economics

Recommended Citation

Oren Gazal and Oren Bar-Gill, "Plea Bargains Only for the Guilty" (November 2004). University of Michigan Legal Working Paper Series. University of Michigan John M. Olin Center for Law & Economics Working Paper Series. Working Paper 30.
http://law.bepress.com/umichlwps/olin/art30

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