SSDI beneficiaries lose their entire cash benefit if they perform work that is substantial gainful activity (SGA) after using Social Security work incentive programs. The complete loss of benefits might be a work disincentive for beneficiaries. We report results from a pilot project that replaces the complete loss of benefits with a gradual…

Background: Social experiments frequently exploit data from administrative records. However, most administrative data systems are designed to track earnings or benefit payments among residents within a single state. When an experimental participant moves across state lines, his entries in the data system of his state of origin consist entirely of…