というNBER論文が上がっている。原題は「More Guns, More Unintended Consequences: The Effects of Right-to-Carry on Criminal Behavior and Policing in US Cities」で、著者はJohn J. Donohue(スタンフォード大)、Samuel V. Cai(同)、Matthew V. Bondy(同)、Philip J. Cook(デューク大)。 以下はその要旨。 We analyze a sample of 47 major US cities to illuminate the mechanisms that lead Right-to-Carry concealed handgun laws to increase crime. The altered behavior of