Nonrandom Selection in the HRS Social Security Earnings Sample.

The Health and Retirement Study (HRS), administered by the Institute for Social Research (ISR) at the University of Michigan, is a longitudinal survey of the population of U.S. households with at least one adult between the ages of 51 and 61 in 1992 (individuals born between 1931 and 1941). Wave 1 of the survey was carried out in 1992 with subsequent waves to be conducted every two years. In Wave 1, the HRS collected data on 12,652 respondents from 7,702 households. In accordance with an agreement with the Social Security Administration, HRS respondents were asked to grant ISR permission to obtain the respondents' earnings histories as reported to the Social Security Administration. Such data are extremely valuable because they provide unusually accurate administrative earnings histories over an unusually long period, 1951- 1991, and these data can be used in conjunction with the wealth of survey information collected in the HRS itself. Because of the highly confidential nature of the data, the earnings histories are not part of the FIRS public release data sets; rather, the Social Security earnings data are provided only through special permission from the HRS.

Earnings and Benefits File/HRS content and design/Record Linkages/Social Security Research

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