Abstract The legalization of recreational marijuana is a pivotal policy change, and its social consequences remain largely unknown. Central to the public concern is its impact on crime, about which competing views exist and empirical studies have yielded mixed results. Based on Uniform (UCR) data from 2007 to 2017, this study used Difference in Differences (DID) analysis to examine the impact of recreational marijuana legalization on the rates of a variety of serious crimes in Oregon, which passed its recreational marijuana law (RML) in late 2014. Results provide some evidence demonstrating a crime-exacerbating effect of recreational marijuana legalization, as reflected by substantial increases in the rates of multiple types of serious crimes as measured by the UCR in Oregon relative to non-legalized states following legalization, including property and violent crime overall, as well as other crimes such as burglary, motor vehicle theft, larceny, and aggravated assault.

中文翻译：

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休闲大麻合法化对犯罪的影响：来自俄勒冈州的证据

摘要 休闲大麻的合法化是一项关键的政策变化，其社会后果在很大程度上仍然未知。公众关注的核心是它对犯罪的影响，对此存在不同的观点，实证研究产生了不同的结果。本研究基于 2007 年至 2017 年的统一 (UCR) 数据，使用差异差异 (DID) 分析来检查休闲大麻合法化对俄勒冈州各种严重犯罪率的影响，俄勒冈州通过了休闲大麻法 (RML) ) 在 2014 年末。结果提供了一些证据，证明娱乐性大麻合法化会加剧犯罪，这反映在俄勒冈州 UCR 衡量的多种严重犯罪率相对于合法化后的非合法化州的大幅增加，