The papers in Tax Policy and the Economy Volume 31 are all directly related to important and often long-standing issues, often including how transfer programs affect tax rates and behavior. In the first paper, Alan Auerbach, Laurence Kotlikoff, Darryl Koehler, and Manni Yu take a lifetime perspective on the marginal tax rates facing older individuals and families arising from a comprehensive set of sources. In the second, Gizem Kosar and Robert A. Moffitt provide new estimates of the cumulative marginal tax rates facing low-income families over the period 1997-2007. In the third paper, Emmanuel Saez presents evidence on the elasticity of taxable income with respect to tax rates, drawing on data from the 2013 federal income tax reform. In the fourth, Conor Clarke and Wojciech Kopczuk survey the treatment of business income taxation in the United States since the 1950s, providing new data on how business income and its taxation have evolved over time. In the fifth paper, Louis Kaplow argues that the reduction in statutory tax rates from base-broadening may not reduce effective marginal tax rates on households.

This volume presents five new studies on taxation and government transfer programs. Alexander Blocker, Laurence Kotlikoff, Stephen Ross, and Sergio Villar Vallenas show how asset pricing can be used to value implicit fiscal debts, which are currently rarely measured or adjusted for risk, while accounting for risk properties. They apply their methodology to study Social Security. Michelle Hanson, Jeffrey Hoopes, and Joel Slemrod examine the effects of the Tax Cuts and Jobs Act on corporation behavior and on firms' statements about their behavior. They focus on for four outcomes: bonuses, investment, share repurchases, and dividends. Scott Baker, Lorenz Kueng, Leslie McGranahan, and Brian Melzer explore whether "unconventional" fiscal policy in the form of pre-announced consumption tax changes can shift durables purchases intertemporally, how it such shifts are affected by consumer credit. Alan Auerbach discusses "tax equivalences," disparate sets of policies that have the same economic effects, and also illustrates when these equivalences break down. Jeffrey Liebman and Daniel Ramsey use data from NBER's TAXSIM model to investigate the equity implications of a switch from joint to independent taxation that could occur in conjunction with adoption of return-free tax filing.

The six research studies in Volume 32 of Tax Policy and the Economy analyze the U.S. tax and transfer system, in particular its effects on revenues, expenditures, and economic behavior. First, James Andreoni examines donor advised funds, which are financial vehicles offered by investment houses to provide savings accounts for tax-free charitable giving, and weighs their effects on donations against their tax cost. Second, Caroline Hoxby analyzes the use of tax credits by students enrolled in online post-secondary education. Third, Alex Rees-Jones and Dmitry Taubinsky explore taxpayers' psychological biases that lead to incorrect perceptions and understanding of tax incentives. Fourth, Jeffrey Clemens and Benedic Ippolito investigate the implications of block grant reforms of Medicaid for receipt of federal support by different states. Fifth, Andrew Samwick examines means-testing of Medicare and federal health benefits under the Affordable Care Act. Sixth, Bruce Meyer and Wallace Mok study the incidence and effects of disability among U.S. women from 1968 to 2015, examining the impacts of disability on income, consumption, and public transfers.

The effectiveness of the U.S. social safety net continues to be an important national issue. Societal changes such as population diversification, policy shifts, and declining employment have increased the demand to evaluate the social safety net programs and their impacts. This volume of The ANNALS offers a comprehensive consideration of eleven of the most prominent entitlement programs in the United States, reflecting on their ability to support Americans and examining necessary reforms to expand on current successes. Paying particular attention to the often-understated complexity of these programs, this volume presents innovative solutions to issues of economic security and illuminates the need for continued research on the social safety net, its capacity, and its potential.

This volume presents six new studies on current topics in taxation and government spending. The first study looks at the costs of income tax filing, which have risen over time because of the numerous tax forms families have to fill out when filing their taxes and because of increased costs of itemizing deductions, and explores ways to simplify filing and reduce those costs. The second study investigates the design of income tax schedules when there is uncertainty about the way taxation affects household behavior. The third study provides new and comprehensive estimates of the impact of the US Earned Income Tax Credit on the employment of low-income men and women, finding that the large majority of the various expansions of that credit over the last forty years have increased employment of single mothers. The fourth study reviews the structure of business taxation in China and describes a number of tax distortions and potential inefficiencies in the system. The next paper considers how the Affordable Care Act has affected the health insurance and labor market choices of individuals who are between the ages of 60 and 64, and it finds increases in insurance coverage and reductions in employment for some groups. The last study considers how reimbursement rates for health care providers under various government insurance programs affect providers' willingness to take on new patients and expand their patient capacity.

This volume presents five new studies on current topics in taxation and government spending. Mark Shepard, Katherine Baicker, and Jonathan Skinner explore implementation aspects of a Medicare-for-All program, which provides a uniform health insurance benefit to everyone, and contrast it with a program providing a basic benefit that can be supplemented voluntarily. John Beshears, James Choi, Mark Iwry, David John, David Laibson, and Brigitte Madrian examine the design and feasibility of firm-sponsored "rainy day funds," short-term savings accounts for employees that can be used when faced with temporary periods of high expenditure. Robert Barro and Brian Wheaton investigate the impact of taxation on choice of corporate form, on the formation and legal structure of new businesses, and indirectly on productivity in the economy. Jonathan Meer and Benjamin Priday examine the impact of the 2017 federal income tax reform, which reduced marginal tax rates and the incentive for charitable giving, on such giving. Finally, Casey Mulligan analyzes the impact of the Affordable Care Act on whether firms employ fewer than 50 employees, the employment threshold below which they are exempt from the requirement to provide health insurance to their employees.

This volume presents five new studies on current topics in taxation and government spending. Natasha Sarin, Lawrence Summers, Owen Zidar, and Eric Zwick study how investors respond to taxes on capital gains, whether their incentives to invest are affected by those taxes, and whether that responsiveness has changed over time. Ethan Rouen, Suresh Nallareddy, and Juan Carlos Suarez Serrato revisit the question of whether cuts to corporate taxes increase income inequality, bringing new data and new statistical techniques to generate fresh findings. Alan Auerbach and William Gale investigate whether the advantages and disadvantages of different types of taxation are affected when interest rates stay low for long periods, as has been the case in the U.S. for many years. Nora Gordon and Sarah Reber study the distributional impact of emergency subsidies to schools made by the federal government during the recent COVID pandemic and whether those subsidies were sufficient to cover the increased school costs induced by the pandemic. Jacob Goldin, Elaine Maag, and Katherine Michelmore investigate the fiscal cost of an expansion of the U.S. child tax credit, which has been discussed extensively in policy circles recently. They take into account not only the direct expenditure on the allowance but how cost is affected by the existence of work incentives and by possible beneficial effects on childrens' adult earnings.

Few government programs in the United States are as controversial as those designed to help the poor. From tax credits to medical assistance, the size and structure of the American safety net is an issue of constant debate. These two volumes update the earlier Means-Tested Transfer Programs in the United States with a discussion of the many changes in means-tested government programs and the results of new research over the past decade. While some programs that that experienced falling outlays in the years prior to the previous volume have remained at low levels of expenditure, many others have grown, including Medicaid, the Earned Income Tax Credit, the Supplemental Nutrition Assistance Program, and subsidized housing programs. For each program, the contributors describe its origins and goals, summarize its history and current rules, and discuss recipients' characteristics and the types of benefits they receive. This is an invaluable reference for researchers and policy makers that features detailed analyses of many of the most important transfer programs in the United States.

Few government programs in the United States are as controversial as those designed to help the poor. From tax credits to medical assistance, the size and structure of the American safety net is an issue of constant debate. These two volumes update the earlier Means-Tested Transfer Programs in the United States with a discussion of the many changes in means-tested government programs and the results of new research over the past decade. While some programs that that experienced falling outlays in the years prior to the previous volume have remained at low levels of expenditure, many others have grown, including Medicaid, the Earned Income Tax Credit, the Supplemental Nutrition Assistance Program, and subsidized housing programs. For each program, the contributors describe its origins and goals, summarize its history and current rules, and discuss recipients' characteristics and the types of benefits they receive. This is an invaluable reference for researchers and policy makers that features detailed analyses of many of the most important transfer programs in the United States.