TRENDS IN NEIGHBORHOOD INCOME INEQUALITY IN THE U.S.: 1980–2000*
研究了1980至2000年间美国359个大都市区内部及社区间的收入不平等地理模式，发现总体不平等主要由社区内部差异驱动，但社区间差异在1980年代急剧上升后于1990年代有所回落。
ABSTRACT This paper reports evidence on the geographic pattern of income inequality, both within and between neighborhoods, across a sample of 359 U.S. metropolitan areas between 1980 and 2000. The results indicate that overall income inequality within a metro area tends to be driven by variation within neighborhoods, not between them, although we find that between‐neighborhood differences rose dramatically during the 1980s and subsided somewhat during the 1990s. While this trend is similar to what existing research has found, our findings reveal potentially important differences in the magnitudes of the changes depending on whether neighborhoods are defined by block groups or tracts.