This paper reviews the basic theoretical models that are appropriate for analyzing different types of welfare reforms, and the related empirical literature. We first present the canonical labor supply model of a classical welfare program, and then extend this basic framework to include in-kind...

We examine trends in employment, earnings, and incomes over the last two decades in the United States, and how the safety net has responded to changing fortunes, including the shutdown of the economy in response to the Covid-19 Pandemic. The U.S. safety net is a patchwork of different programs...

Means-tested and social insurance programs in the U.S. have been transformed over the last 25 years, with expansions in Medicare and Medicaid, the Earned Income Tax Credit, and Supplemental Security Income, and with contractions in Temporary Assistance for Needy Families. We examine the effect...

We present new calculations of cumulative marginal tax rates (MTRs) facing low income families participating in multiple welfare programs over the period 1997-2007, the period after 1996 welfare reform but before the program expansions of the Great Recession. Our calculations are for...

Take-up of a social benefit is usually defined as receiving a benefit for which an individual or household is eligible. The take-up rate is the fraction of those eligible for a program who participate and receive a benefit or service. We survey estimates of take-up of social benefits around the...

The federal government enacted massive spending in the Pandemic Recession. But was this spending scaled to the magnitude of the economic downturn? We examine the responsiveness of the safety net to the Pandemic Recession and compare it to that in the Great Recession. Using monthly state-level...

Existing research on the static effects of the manipulation of welfare program benefit parameters on labor supply has allowed only restrictive forms of heterogeneity in preferences. Yet preference heterogeneity implies that the marginal effects of welfare reforms on labor supply may differ in...

The negative income tax proposed by Milton Friedman represents one of the fundamental ideas of modern welfare policy. However, the academic literature has raised two difficulties with it, one challenging its purported work incentives and the other suggesting the possible superiority of work...

We examine the effect of the 1996 Tax Reform Act on the labor supply of affluent men. The Act reduced marginal tax rates for the affluent more than for other taxpayers. Using instrumental-variables methods with a variety of identifying variables, we find essentially no responsiveness of the...

We assess the effectiveness of means-tested and social insurance programs in the United States. We show that per capita expenditures on these programs as a whole have grown over time but expenditures on some programs have declined. The benefit system in the U.S. has a major impact on poverty...