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Title: The Great Migration in Black and White: New Evidence on the Selection and Sorting of Southern Migrants

Citation Type: Miscellaneous

Publication Year: 2015

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Abstract: Results in this paper depend upon the quality of the underlying matched data. To assess the robustness of our results to potentially mismatched individuals, we examined the results sensitivity to tightening the match criteria. As described above, men in the linked sample are matched on place of birth, year of birth, first and last names. Place of birth is already restricted to exact matches, and year of birth is restricted to falling within a two-year window of the year implied by recorded age in 1910. Mill (2013) shows that within this range, year of birth errors are not predictive of match success, and we make no further restrictions based on implied year of birth.1 Following Mill (2013) and Feigenbaum (2015), we calculated the Jaro-Winkler string distances for first and last names in our sample as recorded in 1910 and for the proposed matches in 1930.2 Jaro-Winkler string distances are explained in detail in Winkler (1990).3 We then restricted the sample those with distances of 0 (or, exact matches) for last names and 0.3 for first names.4 The restricted sample contains 65 percent of the original sample. We then re-estimated results in each of the tables of the main paper using the restricted sample. None of our substantive conclusions were affected, and these results are available upon request.

Url: http://www.nber.org/data-appendix/w21384/Online_Appendix_NBER.pdf

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Authors: Collins, William J; Wanamaker, Marianne H

Publisher: NBER

Data Collections: IPUMS USA

Topics: Migration and Immigration, Race and Ethnicity

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