Means-tested programs and interstate migration in the United States
量化了经济状况调查项目（特别是医疗补助和公共住房）对受益人州际流动的影响，发现流动性下降17.2%，其中一半源于联邦协调不足，消除该风险可提升福利。
This paper quantifies the impact of means-tested programs – in particular, Medicaid and Public Housing – on the interstate mobility of their beneficiaries. Simulations from a structural model with heterogeneous workers and locations show that beneficiaries' mobility falls by 17.2 percent, with the greatest reduction occurring among the poorest beneficiaries. Around half of this effect stems from the lack of federal coordination in the programs' administrations, namely, the possibility that a moving beneficiary loses transfers despite being eligible for them. A policy that eliminates this risk raises overall welfare, with 5 percent of low-income households enjoying a welfare gain of 1.1 percent.