CPS estimates of annual health insurance coverage are below estimates from other surveys and administrative data. One potential explanation is that respondents misinterpret the question and report current rather than past year status. The authors use CPS data matched to administrative enrollment...

Conventional estimates of the number of uninsured Californians are derived from the Current Population Survey (CPS). Unfortunately, CPS estimates of the number of people receiving Medi-Cal and welfare (AFDC/CalWORKs) are well below the numbers implied by official Medi-Cal records, suggesting...