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Uncertainty and the Economy: The Evolving Distributions of Aggregate Supply and Demand Shocks

By Geert Bekaert, Eric Engstrom, and Andrey Ermolov

American Economic Journal: Macroeconomics, January 2026

We estimate the time-varying distribution of aggregate supply (AS) and aggregate demand (AD) shocks. We distinguish between traditional Gaussian uncertainty and "bad" uncertainty, associated with negative skewness. The Great Moderation is driven by a redu...

IT and Urban Polarization

By Jan Eeckhout, Christoph Hedtrich, and Roberto Pinheiro

American Economic Journal: Macroeconomics, January 2026

We show that differential IT investment across cities has been a key driver of job and wage polarization since the 1990s. Using a novel dataset, we establish two stylized facts: IT investment is highest in firms in large and expensive cities, and the decl...

The Effects of Biased Labor Market Expectations on Consumption, Wealth Inequality, and Welfare

By Almut Balleer, Georg Duernecker, Susanne Forstner, and Johannes Goensch

American Economic Journal: Macroeconomics, January 2026

We analyze US survey data and document a substantial optimistic bias of households in their expectations about future labor market transitions. We find that low-skilled individuals tend to be strongly overoptimistic, whereas high-skilled individuals have ...

Bank Risk-Taking, Credit Allocation, and Monetary Policy Transmission: Evidence from China

By Xiaoming Li, Zheng Liu, Yuchao Peng, and Zhiwei Xu

American Economic Journal: Macroeconomics, January 2026

Using confidential loan-level data, we examine how Basel III influenced the responses of bank risk-taking to monetary policy shocks in China. We use a difference-in-differences (DID) approach, exploiting disparities in lending behavior between high- and l...

What is Newsworthy? Theory and Evidence

By Luis Armona, Matthew Gentzkow, Emir Kamenica, and Jesse M. Shapiro

American Economic Review: Insights

We introduce a model in which a benevolent news outlet decides whether to report the realization of a state to a consumer, who pays a cost to receive it. A simple statistical rule, called a proper scoring rule, describes when the outlet should be more ...

The Opportunity Atlas: Mapping the Childhood Roots of Social Mobility

By Raj Chetty, John N. Friedman, Nathaniel Hendren, Maggie R. Jones, and Sonya R. Porter

American Economic Review, January 2026

We construct a public atlas of mean outcomes in adulthood by childhood census tract. Outcomes vary sharply across neighborhoods: For children whose parents earn $27,000, the standard deviation of mean household income in adulthood is $10,420 across tracts...

Optimal Taxation and Market Power

By Jan Eeckhout, Chunyang Fu, Wenjian Li, and Xi Weng

American Economic Review, January 2026

Should optimal income taxation change when firms have market power? We analyze how the planner can optimally tax labor income of workers and profits of entrepreneurs. We derive optimal tax rates that depend on markups and identify four distinct components...