Horatio Parker
Veteran Member
http://www.nber.org/digest/may15/w20934.html
Using the complete manuscript pages of the federal census to identify the races of next-door neighbors for the period 1880-1940, the authors were able to analyze segregation consistently and comprehensively for all areas in the United States, allowing for an in-depth view of the variation in segregation across time and space.
The authors find that residential segregation in the United States doubled from 1880 to 1940. The findings show that the likelihood of having opposite-race neighbors declined precipitously in every region of the United States. The rise in segregation occurred in areas with small black population shares, areas with large black population shares, areas that experienced net inflows of black residents, areas that experienced net outflows of black residents, urban areas with large populations, and rural areas with smaller populations. In light of these findings, the authors conclude that the traditional story of increasing segregation in urban areas in response to black migration to urban centers is incomplete, and must be augmented with a discussion of the increasing racial segregation of rural areas and other areas that lost black residents.
The findings complicate traditional explanations for increasing segregation as being due to blacks clustering in small areas abutting white communities, the use of restrictive covenants on residential housing, the presence of large manufacturing firms which employed blacks, and differences in transportation infrastructure, since these were all urban phenomena. The increase in rural segregation also complicates historical narratives that view population dynamics in rural areas as stagnant. The focus on urban segregation has neglected the fact that rural areas became increasingly segregated over time.