We develop a theoretical model to explain both the high level and persistence in gun violence for black males ages 15-24 consistent with the empirical literature. A person may carry a gun for instrumental (i.e., criminal) reasons or for its perceived protective benefit. Discerning underlying...

Crack cocaine markets were associated with substantial increases in violence in the U.S. during the 1980s and 1990s. Using cross-city variation in the emergence of these markets, we show that the resulting violence has important long-term implications for understanding current levels of murder...

We propose the rise of crack cocaine markets as an explanation for the end to the convergence in black-white educational outcomes beginning in the mid-1980s. After constructing a measure to date the arrival of crack markets in cities and states, we show large increases in murder and...