论文标题
社区活力及其与费城安全的关系
Community Vibrancy and its Relationship with Safety in Philadelphia
论文作者
论文摘要
当地城市社区的力量在多大程度上影响社区安全？我们根据来自费城市的独特党派许可证批准的独特数据集构建社区活力的度量。我们的第一个措施捕获了一个社区中的集体聚会事件的整体量，而我们的第二个措施捕获了块政党活动的类型（常规与自发）的差异。我们使用回归建模和倾向得分匹配，以控制周围社区的经济，人口统计和土地使用特征，当研究犯罪与我们的两种社区活力措施之间的关系时。我们对2006年至2015年的犯罪和社区活力的总水平以及社区活力和犯罪趋势进行了分析。我们发现，有障碍政党数量较高的社区的犯罪率明显更高，而那些拥有较大自发障碍党派事件的社区的犯罪率明显较低。我们还发现，随着时间的推移，自发障碍缔约方比例增加的社区更有可能在同一时期的总犯罪发生率下降趋势。
To what extent can the strength of a local urban community impact neighborhood safety? We construct measures of community vibrancy based on a unique dataset of block party permit approvals from the City of Philadelphia. Our first measure captures the overall volume of block party events in a neighborhood whereas our second measure captures differences in the type (regular versus spontaneous) of block party activities. We use both regression modeling and propensity score matching to control for the economic, demographic and land use characteristics of the surrounding neighborhood when examining the relationship between crime and our two measures of community vibrancy. We conduct our analysis on aggregate levels of crime and community vibrancy from 2006 to 2015 as well as the trends in community vibrancy and crime over this time period. We find that neighborhoods with a higher number of block parties have a significantly higher crime rate, while those holding a greater proportion of spontaneous block party events have a significantly lower crime rate. We also find that neighborhoods which have an increase in the proportion of spontaneous block parties over time are significantly more likely to have a decreasing trend in total crime incidence over that same time period.
