Sciandra Matthew, Sanbonmatsu Lisa, Duncan Greg J, Gennetian Lisa A, Katz Lawrence F, Kessler Ronald C, Kling Jeffrey R, Ludwig Jens
National Bureau of Economic Research, 1050 Massachusetts Avenue, Cambridge, MA 02138, USA.
National Bureau of Economic Research, 1050 Massachusetts Avenue, Cambridge, MA 02138, USA
J Exp Criminol. 2013 Dec;9(4). doi: 10.1007/s11292-013-9189-9.
Using data from a randomized experiment, to examine whether moving youth out of areas of concentrated poverty, where a disproportionate amount of crime occurs, prevents involvement in crime.
We draw on new administrative data from the U.S. Department of Housing and Urban Development's Moving to Opportunity (MTO) experiment. MTO families were randomized into an offered a housing voucher that could only be used to move to a low-poverty neighborhood, a offered a standard housing voucher, and a . This paper focuses on MTO youth ages 15-25 in 2001 ( = 4,643) and analyzes intention to treat effects on neighborhood characteristics and criminal behavior (number of violent- and property-crime arrests) through 10 years after randomization.
We find the offer of a housing voucher generates large improvements in neighborhood conditions that attenuate over time and initially generates substantial reductions in violent-crime arrests and sizable increases in property-crime arrests for experimental group males. The crime effects attenuate over time along with differences in neighborhood conditions.
Our findings suggest that criminal behavior is more strongly related to current neighborhood conditions (situational neighborhood effects) than to past neighborhood conditions (developmental neighborhood effects). The MTO design makes it difficult to determine which specific neighborhood characteristics are most important for criminal behavior. Our administrative data analyses could be affected by differences across areas in the likelihood that a crime results in an arrest.
利用一项随机试验的数据,研究将青少年从犯罪率过高的集中贫困地区迁出是否能防止其卷入犯罪活动。
我们借鉴了美国住房和城市发展部“向机会迁居”(MTO)试验的新行政数据。MTO家庭被随机分为三组:一组提供只能用于迁往低贫困社区的住房券,一组提供标准住房券,还有一组为对照组。本文聚焦于2001年时年龄在15至25岁之间的MTO青少年(n = 4643),并分析随机分组后10年内对社区特征和犯罪行为(暴力犯罪和财产犯罪逮捕次数)的意向性治疗效果。
我们发现,提供住房券能使社区条件大幅改善,这种改善会随着时间推移而减弱,并且最初会使实验组男性的暴力犯罪逮捕次数大幅减少,财产犯罪逮捕次数大幅增加。犯罪影响会随着时间推移以及社区条件差异而减弱。
我们的研究结果表明,犯罪行为与当前社区条件(情境性社区影响)的关联比与过去社区条件(发展性社区影响)的关联更为紧密。MTO的设计使得难以确定哪些具体的社区特征对犯罪行为最为重要。我们的行政数据分析可能会受到不同地区犯罪导致逮捕可能性差异的影响。