Impulse Purchases, Gun Ownership, and Homicides: Evidence from a Firearm Demand Shock
利用2012/2013年全国性枪支需求冲击，研究发现美国实施手枪购买延迟法的州手枪销售增幅较小，同期凶杀率低约2%，主要源于减少冲动性购买和家庭暴力。
Abstract Do firearm purchase delay laws reduce aggregate homicide levels? Using variation from a six-month countrywide gun demand shock in 2012/2013, we show that U.S. states with legislation preventing immediate handgun purchases experienced smaller increases in handgun sales. Our findings indicate that this is likely driven by comparatively lower purchases among impulsive consumers. We then demonstrate that states with purchase delays also witnessed comparatively 2% lower homicide rates during the same period. Further evidence shows that lower handgun sales coincided primarily with fewer impulsive assaults and points toward reduced acts of domestic violence.