A Simple Model of Optimal Deterrence and Incapacitation

Working Paper: NBER ID: w20747

Authors: Steven Shavell

Abstract: The deterrence of crime and its reduction through incapacitation are studied in a simple multiperiod model of crime and law enforcement. Optimal imprisonment sanctions and the optimal probability of sanctions are determined. A point of emphasis is that the incapacitation of individuals is often socially desirable even when they are potentially deterrable. The reason is that successful deterrence may require a relatively high probability of sanctions and thus a relatively high enforcement expense. In contrast, incapacitation may yield benefits no matter how low the probability of sanctions is—implying that incapacitation may be superior to deterrence.

Keywords: crime; deterrence; incapacitation

JEL Codes: K14; K42


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
optimal imprisonment sanctions (K14)deterrence (K42)
cost of imprisonment (K14)decision to incapacitate vs deter (H56)
probability of sanctions (p) (F51)deterrence (K42)
probability of sanctions (p) (F51)incapacitation benefits (H55)
incapacitation (H76)reduced crime rates (K14)

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