Title: Neighborhood income inequality
Description: "This paper offers a descriptive empirical analysis of the geographic pattern of income inequality within a sample of 359 US metropolitan areas between 1980 and 2000.  Specifically, we decompose the variance of metropolitan area-level household income into two parts: one associated with the degree of variation among household incomes within neighborhoods - defined by block groups and tracts - and the other associated with the extent of variation among households in different neighborhoods.  Consistent with previous work, the results reveal that the vast majority of a city's overall income inequality--at least three quarters--is driven by within-neighborhood variation rather than between-neighborhood variation, although we find that the latter rose significantly during the 1980s, especially between block groups.  We then identify a number of metropolitan area-level characteristics that are associated with both levels of and changes in the degree of each type of residential income inequality"--Federal Reserve Bank of St. Louis web site.