The collapse of crime rates in the 1990s is one of the great mysteries of social science. Now, two economists are arguing for a simple explanation: “It’s the phones, stupid.”

The collapse of crime rates in the 1990s is one of the great mysteries of social science. Now, two economists are arguing for a simple explanation: “It’s the phones, stupid.” @alexismadrigal reports: https://t.co/kYtL0iJMSI

— The Atlantic (@TheAtlantic) June 1, 2019