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The Duncan Segregation Index is a measure of occupational segregation based on gender that measures whether there is a larger than expected presence of one gender over another in a given occupation or labor force by identifying the percentage of employed women (or men) who would have to change occupations for the occupational distribution of men and women to be equal.
The index score can also be interpreted as the percentage of one of the two groups included in the calculation that would have to move to different geographic areas in order to produce a distribution that matches that of the larger area. The index of dissimilarity can be used as a measure of segregation. A score of zero (0%) reflects a fully ...
Over the last century in the United States, there has been a surprising stability of segregation-index scores, which measure the level of occupational segregation of the labor market. [10] There were declines in occupational segregation in the 1970s and 1980s, as technologies that made the care work of the home quicker and easier allowed more ...
Otis Dudley Duncan advocated for quantitative social science in the second half of the twentieth century. His key scholarly contributions include the introduction of path analysis to sociology; the measurement of occupational socioeconomic standing with an index (Duncan Socioeconomic Index); the study of intergenerational occupational mobility; the spatial analysis of residential patterns; the ...
As such, for two objects and having descriptors, the similarity is defined as: = = =, where the are non-negative weights and is the similarity between the two objects regarding their -th variable. In spectral clustering , a similarity, or affinity, measure is used to transform data to overcome difficulties related to lack of convexity in the ...
For two objects and having descriptors, the similarity is defined as: = = =, where the w i j k {\displaystyle w_{ijk}} are non-negative weights usually set to 1 {\displaystyle 1} [ 2 ] and s i j k {\displaystyle s_{ijk}} is the similarity between the two objects regarding their k {\displaystyle k} -th variable.
This index is probably better known as the index of dissimilarity (D). [44] It is closely related to the Gini index. This index is biased as its expectation under a uniform distribution is > 0. A modification of this index has been proposed by Gorard and Taylor. [45] Their index (GT) is = (+)
Published by the Manhattan Institute for Policy Research, the report indicates that the dissimilarity index has declined in all 85 of the nation's largest cities. In all but one of the nation's 658 housing markets, the separation of black residents from other races is now lower than the national average in 1970.