Family Formation and Crime
研究家庭形成对犯罪的影响，发现母亲怀孕初期犯罪逮捕率骤降50%，男性犯罪下降20%但出生时家暴逮捕激增，婚姻则伴随逮捕率逐渐下降50%。
We perform a large-scale analysis of the impact of family formation on crime. For mothers, criminal arrests drop precipitously in the first few months of pregnancy, decreasing 50 percent overall. Men show a sustained 20 percent decline in crime that begins around pregnancy, although arrests for domestic violence spike at birth. A separate design using parents of stillborn children to estimate counterfactual arrest rates reinforces the main findings. Marriage, in contrast, is not associated with any sudden changes and marks the completion of a gradual 50 percent decline in arrests for both men and women.