Denton N A, Massey D S
Department of Sociology, State University of New York, Albany 12222.
Demography. 1991 Feb;28(1):41-63.
Ethnic diversity within metropolitan neighborhoods increased during the 1970s, and all-white tracts became less common. The simple presence of a minority group did not precipitate turnover, but as the minority proportion rose, the probability of racial and ethnic transition increased. Tracts with multiple groups became much more common during the decade and were especially prone to transition. Distinctively, black neighborhoods displayed a bipolar clustering at both ends of the distribution of minority presence. Multivariate models showed that white loss was increased by the presence of multiple minority groups, by a higher minority proportion, and by location near existing minority areas.
20世纪70年代，大都市社区内的种族多样性有所增加，全白人聚居区变得不那么常见了。少数群体的单纯存在并不会引发人口更替，但随着少数群体比例的上升，种族和民族过渡的可能性增加。在这十年间，有多个群体的聚居区变得更加普遍，而且特别容易发生过渡。值得注意的是，黑人社区在少数群体存在分布的两端呈现出两极聚类。多变量模型显示，多个少数群体的存在、较高的少数群体比例以及靠近现有少数群体区域的位置，都会增加白人人口的流失。
