Between the early 1990s and 2015 the relationship between mental despair and age was hump-shaped in the United States: it rose to middle-age, then declined later in life. That relationship has now ...

Renewable electricity generation technology costs have fallen dramatically, investment has grown rapidly, and renewables are now a pillar of climate and decarbonization policy. Part of the credit for ...

Data centers are among the fastest-growing electricity consumers, raising concerns about their impact on grid operations and decarbonization goals. Their temporal flexibility—the ability to shift ...

Beren Professor of Economics at Harvard University, presented the 2025 Martin ...

2025, Master Lecture, Edward Miguel, "Cash Transfers, Development and Health: Emerging Lessons from the Kenya General ...

The mergers we study – hospital acquisitions of physician practices – have reshaped the $1 trillion US physician industry, nearly doubling the share of physicians working for hospitals between 2008 ...

This paper presents micro-empirical evidence on the effects of wage-setting decentralization. Our setting is Italy, where employers are required to comply with occupation- and industry-specific wage ...

Lecture on "The Fiscal Future," examining the trajectory of US government debt — which is projected to reach 156 percent of ...

Abstract We examine positive and normative questions that arise with the joint use of carbon taxes and green subsidies in an open economy. Moving from autarky to free trade induces countries to ...

This paper examines a new moral hazard in delegated decision-making: authors can embed hidden instructions—known as prompt injections—to bias AI referees in academic peer review, thereby hijacking ...

Over 22 years, from the launch of the NBER Retirement Research Center in 2003, through the addition of the NBER Disability Research Center in 2012 and their consolidation into the NBER Retirement and ...

This paper characterizes the dynamic effects of shocks in government spending and taxes on economic activity in the United States in the post-war period. It does so by using a mixed structural ...