A Unified Welfare Analysis of Government Policies

We conduct a comparative welfare analysis of 133 historical policy changes over the past half-century in the United States, focusing on policies in social insurance, education and job training, taxes and cash transfers, and in-kind transfers. For each policy, we use existing causal estimates to calculate both the benefit that each policy provides its recipients (measured as their willingness to pay) and the policy’s net cost, inclusive of long-term impacts on the government's budget. We divide the willingness to pay by the net cost to the government to form each policy’s Marginal Value of Public Funds, or its “MVPF”. Comparing MVPFs across policies provides a unified method of assessing their impact on social welfare.