The Social Security Administration maintains wage and salary earnings records for all American workers. From those administrative records, the agency extracts a 1 percent sample called the Continuous Work History Sample (CWHS) for research and statistical purposes. This article uses CWHS data to...

The Social Security Administration maintains wage-and-salary earnings records for all American workers. From those administrative records, the agency extracts a 1-percent sample called the Continuous Work History Sample (CWHS) for research and statistical purposes. This article uses CWHS data to...