Correlations between Brothers and Neighboring Boys in Their Adult Earnings: The Importance of Being Urban
通过比较兄弟与邻家男孩成年收入的相关性，发现兄弟间的收入相似更多源于家庭而非邻里，且邻里相关性主要由城乡收入差异和童年居住地预测成年居住地所致。
A comparison of the correlations between brothers and neighboring boys in their adult earnings suggests that the earnings resemblance between brothers stems more from growing up in the same family than from growing up in the same neighborhood. Much of the neighbor correlation is explicable in terms of the large earnings differential between urban and nonurban areas combined with the strength with which urbanicity of childhood neighborhood predicts urbanicity of adult location. This pattern is subject to a variety of interpretations, but it is quite different from the usual view of neighborhood effects.