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Staggered Difference-in-Differences in Gravity Settings: Revisiting the Effects of Trade Agreements

By Arne J. Nagengast and Yoto V. Yotov

American Economic Journal: Applied Economics, January 2025

We nest an extended two-way fixed effect (ETWFE) estimator for staggered difference-in-differences within the structural gravity model. To test the ETWFE, we estimate the effects of regional trade agreements (RTAs). The results suggest that RTA estimates ...

Location, Location, Location

By David Card, Jesse Rothstein, and Moises Yi

American Economic Journal: Applied Economics, January 2025

We use linked employer–employee data to study the causal effects of location on earnings in the United States. We estimate a model with employer and employee effects, then aggregate to the commuting zone (CZ) level. Sorting across firms biases tradition...

Changes in Family Structure and Welfare Participation since the 1960s: The Role of Legal Services

By Jamein Cunningham and Andrew Goodman-Bacon

American Economic Journal: Applied Economics, January 2025

This paper evaluates the effects of the War on Poverty's legal services program (LSP), which provided subsidized legal assistance to poor communities, focusing on divorce and welfare access. We use a difference-in-difference (DiD) research design based on...

Wealth Tax Mobility and Tax Coordination

By David R. Agrawal, Dirk Foremny, and Clara Martínez-Toledano

American Economic Journal: Applied Economics, January 2025

We study the effects of decentralized wealth taxation on mobility and the effectiveness of tax coordination at mitigating tax competition. We exploit the reintroduction of the Spanish wealth tax, after which all regions except Madrid levied positive tax r...

Careers and Intergenerational Income Mobility

By Catherine Haeck and Jean-William Laliberté

American Economic Journal: Applied Economics, January 2025

This paper uses census microdata linked with tax records to quantify the contribution of occupations to intergenerational income mobility. We document substantial segregation into occupations by parental income. Children of high-income parents are signifi...

Changes in Nutrient Intake at Retirement

By Melvin Stephens Jr. and Desmond Toohey

American Economic Journal: Applied Economics, January 2025

Prior research finds food expenditure decreases at retirement, which suggests households are inadequately saving. In contrast, other evidence shows that direct measures of food intake are unaffected by exiting the labor force. Using a wide array of data s...

Digital Information Provision and Behavior Change: Lessons from Six Experiments in East Africa

By Raissa Fabregas, Michael Kremer, Matthew Lowes, Robert On, and Giulia Zane

American Economic Journal: Applied Economics, January 2025

While some studies suggest mobile phone–based information programs change behavior; others find no effect. We evaluate six text message agricultural extension programs, collectively covering 128,000 farmers. A meta-analysis finds a 1.22-fold increase in...

Estimating Hysteresis Effects

By Francesco Furlanetto, Antoine Lepetit, Ørjan Robstad, Juan Rubio-Ramírez, and Pål Ulvedal

American Economic Journal: Macroeconomics, January 2025

In this paper we identify demand shocks that can have a permanent effect on output through hysteresis effects. We call these shocks permanent demand shocks. They are found to be quantitatively important in the United States, in particular in samples start...

The Evolution of US Retail Concentration

By Dominic A. Smith and Sergio Ocampo

American Economic Journal: Macroeconomics, January 2025

Increasing national concentration has contributed to market power concerns. Yet local trends are more informative about market power in retail, where consumers have traditionally shopped at nearby stores. Using novel product-level census data for all US r...

Managing Dynamic Competition

By Tracy R. Lewis and Huseyin Yildirim

American Economic Review, September 2002

In many important high-technology markets, including software development, data processing, communications, aeronautics, and defense, suppliers learn through experience how to provide better service at lower cost. This paper examines how a buyer designs d...