The Deterrent Effect of Capital Punishment: Evidence from a "Judicial Experiment"
Emory University - Department of Economics
Emory University School of Law
Economic Inquiry, Vol. 44, Issue 3, pp. 512-535, 2006
We use panel data for 50 states during the 1960-2000 period to examine the deterrent effect of capital punishment, using the moratorium as a "judicial experiment." We compare murder rates immediately before and after changes in states' death penalty laws, drawing on cross-state variations in the timing and duration of the moratorium. The regression analysis supplementing the before-and-after comparisons disentangles the effect of lifting the moratorium on murder from the effect of actual executions on murder. Results suggest that capital punishment has a deterrent effect, and that executions have a distinct effect which compounds the deterrent effect of merely (re)instating the death penalty. The finding is robust across 96 regression models. (JEL C1, K1)
Accepted Paper Series
Date posted: February 29, 2008
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