Connecting past to present: Examining different approaches to linking historical redlining to present day health inequities

Clemens Noelke, Michael Outrich, Mikyung Baek, Jason Reece, Theresa L Osypuk, Nancy McArdle, Robert W Ressler and Dolores Acevedo-Garcia

PLOS ONE, 2022, vol. 17, issue 5, 1-23

Abstract: In the 1930’s, the Home Owner Loan Corporation (HOLC) drafted maps to quantify variation in real estate credit risk across US city neighborhoods. The letter grades and associated risk ratings assigned to neighborhoods discriminated against those with black, lower class, or immigrant residents and benefitted affluent white neighborhoods. An emerging literature has begun linking current individual and community health effects to government redlining, but each study faces the same measurement problem: HOLC graded area boundaries and neighborhood boundaries in present-day health datasets do not match. Previous studies have taken different approaches to classify present day neighborhoods (census tracts) in terms of historical HOLC grades. This study reviews these approaches, examines empirically how different classifications fare in terms of predictive validity, and derives a predictively optimal present-day neighborhood redlining classification for neighborhood and health research.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0267606

DOI: 10.1371/journal.pone.0267606

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