TY - BOOK AU - Layton,Timothy J. AU - Maestas,Nicole AU - Prinz,Daniel AU - Vabson,Boris ED - National Bureau of Economic Research. TI - Private vs. Public Provision of Social Insurance: Evidence from Medicaid T2 - NBER working paper series PY - 2019/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - July 2019; Hardcopy version available to institutional subscribers N2 - Public health insurance benefits in the U.S. are increasingly provided by private firms, despite mixed evidence on welfare effects. We investigate the impact of privatization in Medicaid by exploiting the staggered introduction of county-level mandates in Texas that required disabled beneficiaries to switch from public to private plans. Compared to the public program, which used blunt rationing to control costs, we find privatization led to improvements in healthcare--including increased consumption of high-value drug treatments and fewer avoidable hospitalizations--but also higher Medicaid spending. We conclude that private provision can be beneficial when constraints in the public setting limit efficiency UR - https://www.nber.org/papers/w26042 UR - http://dx.doi.org/10.3386/w26042 ER -