Optimal Warning Strategies: Punishment Ought not to be Inflicted where the Penal Provision is not Properly Conveyed
Murat C. Mungan
George Mason University School of Law
July 29, 2012
Review of Law and Economics, Forthcoming
FSU College of Law, Law, Business & Economics Paper No. 11-8
FSU College of Law, Public Law Research Paper No. 505
Law enforcers frequently issue warnings, as opposed to sanctions, when they detect first time offenders. However, virtually all of the law and economics literature dealing with optimal penalty schemes for repeat offenders suggests that issuing warnings is a sub-optimal practice. Another observed phenomenon is the joint use of warnings and sanctions in law enforcement: person A may receive a sanction, whereas person B is only warned for committing the same offense. This situation can be explained through the use of hybrid warning strategies, a concept not yet formalized in the law enforcement literature, where law enforcers issue warnings to x% and sanctions to (100-x)% of first time offenders. This paper uses a two-period optimal deterrence model to provide a rationale as to why it may be optimal to issue warnings. When uninformed individuals are present and their punishment is assumed to be costly, there is a trade-off between such costs and reduced levels of deterrence. Depending on the cost structure associated with the punishment of uninformed individuals; hybrid, pure or no-warning strategies may be optimal. A secondary contribution of this paper is to point out that lack of information concerning laws may lead to optimal escalating punishments for repeat offenders.
Number of Pages in PDF File: 34
Keywords: Warnings, Optimal Sanctions, Repeat Offenders, Crime and Deterrence
JEL Classification: K0, K14, K42
Date posted: April 8, 2011 ; Last revised: January 31, 2013
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