Does the death penalty save lives? A surge of recent interest in this question has yielded a series of papers purporting to show robust and precise estimates of a substantial deterrent effect of capital punishment. We assess the various approaches that have been used in this literature, testing...

Given the large number of possible specification choices available to researchers when estimating the causal effect of concealed-carry laws on crime, one can generate considerable variation across models in the estimated effects of these laws. However, the growing sophistication in the...