City Structure, Job Search and Labour Discrimination: Theory and Policy Implications
构建了一个求职匹配模型，分析黑人受歧视时，社会网络和通勤距离如何影响就业，发现黑人靠近就业的均衡对所有工人更有利，并指出对远离就业的黑人城市应实施更高配额或就业补贴。
We consider a search-matching model in which black workers are discriminated against and the job arrival rates of all workers depend on social networks as well as distance to jobs. Location choices are mainly driven by racial preferences. There are multiple equilibria and we show that all workers are in general better off in the equilibrium where blacks are close to jobs. We also show that, in cities where black workers reside far away from jobs, the optimal policy is to impose higher quotas or employment subsidies than in cities where they live close to jobs. Copyright 2006 The Author(s). Journal compilation Royal Economic Society 2006.