When in Rome... On Local Norms and Sentencing Decisions
研究美国北卡罗来纳州法官因轮岗而跨区办案时，其量刑逐渐趋同于当地惯例，且受资深法官影响，说明地方行为规范塑造了司法实践。
Abstract We study spatial variation in criminal sentencing. We show the existence of local sentencing practices varying widely even across geographically proximate areas. Using compulsory rotation of judges in North Carolina, we find that judges arriving in a new court gradually converge toward local sentencing practices. We provide evidence that convergence in sentencing corresponds to a process of learning about local practices, which is accelerated by the presence of senior judges in the district, and that these sentencing practices are correlated with local norms of behavior. Finally, we discuss the theoretical implications of these results for the optimal design of judicial systems.