【主题】 Hot Knots vs Hot Spots: Targeting Key Players in Crimes
【报告人】Corrado Giulietti（教授，南安普顿大学）
【时间】2023年6月21日周三13:20-14:50
【地点】经济学院710会议室
【语言】英文
【摘要】This paper studies studies the spatial diffusion of crime through a network model. Using the case of London, we estimate a spatial econometric panel model where crime is correlated across neighborhoods. Using the key players approach of Ballester et al 2006 we identify the neighborhoods that when removed produce the largest reduction in aggregate crime. We then simulate the crime reduction obtained by targeting key players and compare it with the crime reduction obtained by using a hot spot approach – a policy in force in many countries that targets areas with highest crime. We demonstrate that, for property crime, the key player approach could lead to a reduction of crime that is 11 percentage points larger than the hot spot approach. We conclude the paper quantifying the financial savings associated with the key player approach and showing that it also reduces the over-targeting of areas with a high share of ethnic minority.
【报告人简介】Corrado Giulietti is currently a professor of Economics in the Department of Economics at the University of Southampton. He also holds the positions as an associate Editor at Journal of Population Economics; associate at Centre for Population Change; director of China Research Centre; research director of Global Labor Organization; and affiliated scholar at Centre for Population, Development and Labour Economics. Professor Giulietti’s research interests are labor and development economics, with a focus on the determinants of migration, the impact of migration and migrants' assimilation. He has contributed to numerous book chapters and his highly distinguished research has landed his publications in top-ranked journals, such as European Economic Reviews, Journal of Labor Economics, Journal of Population Economics.
