"Using Social Security Administration (SSA) records, [this study examines] Social Security income as reported in two Census Bureau surveys, the Survey of Income and Program Participation (SIPP) and the Current Population Survey (CPS).... [The authors] find that the Social Security benefit recorded in the CPS closely approximates the gross benefit recorded for CPS respondents in SSA's records, but the Social Security benefit recorded in the SIPP more closely approximates SSA's record of net benefit payments (after deducting Medicare premiums)."  MORE >>