%0 Report %T Guns and Violence: The Enduring Impact of Crack Cocaine Markets on Young Black Males %A Evans, William N. %A Garthwaite, Craig %A Moore, Timothy J. %D 2018 %R 10.3386/w24819 %B NBER Working Paper 24819 %C Cambridge, MA %U http://www.nber.org/papers/w24819.pdf %I National Bureau of Economic Research