Place of Work and Place of Residence: Informal Hiring Networks and Labor Market Outcomes
利用人口普查数据，通过比较同街区与邻近街区居民的工作地点，发现非正式招聘网络显著影响就业，且相似社会人口特征者效应更强。
We use a novel research design to empirically detect the effect of social interactions on labor market outcomes. Using Census data on residential and employment locations, we examine whether individuals residing in the same city block are more likely to work together than those in nearby blocks. We find evidence of significant social interactions. The estimated referral effect is stronger when individuals are similar in sociodemographic characteristics. These findings are robust across specifications intended to address sorting and reverse causation. Further, the increased availability of neighborhood referrals has a significant impact on a wide range of labor market outcomes. (c) 2008 by The University of Chicago. All rights reserved.