TY - RPRT AU - Cholli, Neil AU - Wu, Derek TI - Multiple Program Participation in the Safety Net: Incidence, Impediments, and Implications PY - 2026/May/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 18636 UR - https://www.iza.org/publications/dp18636 AB - Multiple program participation is a defining feature of the U.S. safety net, with half of recipients enrolling in two or more programs. Yet most research examines programs in isolation, missing the intensity of safety net attachment. We show implications of a multiple-program framework on take-up, targeting, and welfare, using administrative data and a reform streamlining SNAP, Medicaid, and TANF applications. The reform increased multiple program participation more than any program, with 38–62% of gains from single-to-multiple-program transitions among the most disadvantaged - a margin missed by single-program frameworks. Evaluating with multiple instead of single programs alters welfare calculations by up to 64%. KW - multiple program participation KW - safety net KW - administrative burdens KW - take-up KW - targeting KW - welfare ER -