John R. Logan
Department of Sociology
Providence, RI 02912
Institutional Affiliation: Brown University
NBER Working Papers and Publications
|August 2017||The Uptick in Income Segregation: Real Trend or Random Sampling Variance|
with Andrew Foster, Jun Ke, Fan Li: w23656
Recent studies have reported a reversal of an earlier trend in income segregation in metropolitan regions, from a decline in the 1990s to an increase in the 2000-2010 decade. This finding reinforces concerns about the growing overall income inequality in the U.S. since the 1970s. Yet the evidence may be systematically biased to show an upward trend because the effective sample for the American Community Survey (ACS) is much smaller than it was for Census 2000, to which it is being compared. There is a possibility that the apparent changes in disparities across census tracts result partly from a higher level of sampling variation and bias due to the smaller sample. This study uses 100% microdata from the 1940 census to simulate the impact of different sampling rates on estimates of several ...
Published: John R. Logan & Andrew Foster & Jun Ke & Fan Li, 2018. "The Uptick in Income Segregation: Real Trend or Random Sampling Variation?," American Journal of Sociology, vol 124(1), pages 185-222.