Capital Punishment and the Deterrence Hypothesis: Some New Insights and Empirical Evidence

Eastern Economic Journal, Vol. 30, No. 3, pp. 237-258, Spring 2004

Posted: 30 Nov 2002  

Zhiqiang Liu

SUNY at Buffalo, College of Arts & Sciences, Department of Economics

Abstract

We argue that the deterrent effects of the certainty and severity of punishments on murder depend on the status of the death penalty. Legalizing the death penalty not only adds capital punishment as a deterrent but also increases the marginal productivity of other deterrence measures in reducing murder rates. From the econometric standpoint, this suggests that the structure of the murder supply function depends on the status of the death penalty, which is in itself endogenous. Consistent estimation of the deterrent effects of capital punishment and other preventive measures requires taking into account the endogenous nature of the status of the death penalty. Using switching regression techniques and a well-known US data set, we test the implications of the model. The empirical results are consistent with the theoretical predictions of the model and robust to alternative specifications. They also lend strong support to the deterrence hypothesis.

Keywords: capital punishment, deterrence hypothesis, death penalty law

JEL Classification: K42

Suggested Citation

Liu, Zhiqiang, Capital Punishment and the Deterrence Hypothesis: Some New Insights and Empirical Evidence. Eastern Economic Journal, Vol. 30, No. 3, pp. 237-258, Spring 2004. Available at SSRN: https://ssrn.com/abstract=352681

Zhiqiang Liu (Contact Author)

SUNY at Buffalo, College of Arts & Sciences, Department of Economics ( email )

Buffalo, NY 14260
United States

Paper statistics

Abstract Views
13,763