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小鸟读书会第四十期:罪与罚:警察故事
2019-04-15 09:25  

论文题目:Mello, Steven, More COPS, Less Crime. Working paper.

主持:李永涛博士

主讲:张紫薇,经济学院,国民经济学专业

时间:2019年04月16日,星期二,19:30-20:30

地点:蒲河校区则行楼417会议室 

论文摘要

I exploit a natural experiment to estimate the causal effect of police on crime. The American Recovery and Reinvestment Act increased funding for the Community Oriented Policing Services (COPS) hiring grant program from less than $20 million over 2005–2008 to $1 billion in 2009. Hiring grants distributed in 2009 were allocated according to an application score cutoff rule, and I leverage quasi-random variation in grant receipt by comparing the change over time in police and crimes for cities above and below the threshold in a difference-in-differences framework. Relative to low-scoring cities, those above the cutoff experience increases in police of about 3.2% and declines in victimization cost-weighted crime of about 3.5% following the distribution of hiring grants. The results highlight that fiscal support to local governments for crime prevention may offer large returns, especially during bad macroeconomic times.


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