Assessing the benefits of robbery reduction: The case of a large Brazilian city

Diego de Maria Andre , José Raimundo Carvalho
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引用次数: 1

Abstract

We estimate willingness to pay (WTP) for a first-order stochastic reduction on the risk of robbery at a large city in Brazil. We develop a structural choice model that nests a process of contingent valuation among non-degenerate lotteries and estimate it by both maximum likelihood and geographically weighted regression (GWR) using a dataset from the city of Fortaleza that contains a precise measurement of individual's subjective probability of victimization among detailed socioeconomic measurement, willingness to pay, and police presence variables. Expected loss, gender, age, education, and perception of patrolling explain WTP. Our global model estimated a mean WTP of R$ 19.23 (U$ 10.33) per month. Our local model, estimated by GWR, suggests that there is a reasonable amount of spatial heterogeneity that follows the city's socioeconomic spatial distribution profile. Although the city's northwest periphery presents higher WTP, as long as we go inwards, there is plenty of heterogeneity on its spatial distribution. Our results support a theory of crime with an active role for victim's (costly) precautions influenced by socioeconomic spatial heterogeneity.

减少抢劫的效益评估:以巴西一个大城市为例
我们估计支付意愿(WTP)的一阶随机降低抢劫风险在巴西的一个大城市。我们开发了一个结构选择模型,该模型在非退化彩票中嵌入了一个偶然评估过程,并使用来自福塔莱萨市的数据集通过最大似然和地理加权回归(GWR)来估计它,该数据集包含了详细的社会经济测量、支付意愿和警察存在变量中个人主观受害概率的精确测量。预期损失,性别,年龄,教育程度和巡逻感知解释WTP。我们的全球模型估计平均每月WTP为19.23雷亚尔(10.33美元)。GWR估算的本地模型表明,城市的社会经济空间分布存在一定程度的空间异质性。虽然城市西北边缘的WTP较高,但只要向内看,其空间分布存在很大的异质性。我们的研究结果支持了一种犯罪理论,即受社会经济空间异质性影响的受害者(昂贵的)预防措施具有积极作用。
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CiteScore
3.90
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