Identifying the Dynamic Effects of Income Inequality on Crime
利用美国州级面板数据和结构向量自回归模型，研究发现收入不平等的结构性冲击会增加暴力犯罪和财产犯罪，但方差分解显示不平等对犯罪变动的解释力较小。
What happens to crime after an increase in income inequality? The microeconomics literature that attempts to answer this question often employs identification strategies that exploit external sources of variation that provide quasi‐experiments to identify causal effects. In contrast, this paper tackles this question by using structural vector autoregressions (SVAR), a methodology typically employed in modern empirical macroeconomics to identify and estimate dynamic causal effects of exogenous shocks. Unlike the macroeconomic SVAR models that are often applied to time‐series data, we exploit the time series and cross‐sectional dimensions of our data, leading to the estimation of panel SVAR models. Using U.S. state‐level data for the period 1960–2015, our results indicate that structural shocks to inequality increase both violent and property crime. Variance decomposition analyses show that inequality has little explanatory power for movements in crime.