We study how Elon Musk's polarizing and partisan actions have impacted Tesla vehicle sales in the United States. Using county-level, monthly data on new vehicle registrations, we leverage how changes ...

This paper studies how Knightian uncertainty about the distribution of future trade policies affects current trade flows using a dynamic trade model with a sunk cost of exporting. Qualitatively, trade ...

In addition to working papers, the NBER disseminates affiliates’ latest findings through a range of free periodicals — the NBER Reporter, the NBER Digest, the Bulletin on Health, and the Bulletin on ...

Americans now work 50 percent more than do the Germans, French, and Italians. This was not the case in the early 1970s when the Western Europeans worked more than Americans. In this paper, I examine ...

John Leahy and Casey Mulligan. NBER Research Associates John Leahy and Casey Mulligan have been tapped for new roles in the ...

This project addresses the slowdown in US economic growth since 2000 by focusing on how microeconomic policy changes can spur growth. Recognizing that many growth-related policy levers are ...

In this paper, we examine Hong Kong's role in intermediating trade between China and the rest of the world. Hong Kong distributes a large fraction of China's exports. Net of customs, insurance, and ...

This paper examines the effects of tariffs along the supply chain using product-level data from a large U.S. wine importer in the context of the 2019-2021 U.S. tariffs on European wines. By combining ...

This paper provides systematic evidence on the macroeconomic consequences of war using a new dataset covering 115 conflicts and 145 countries over the past 75 years. We document three main findings.

From 1900 to 1940, ordinary working- and middle-class families saved for retirement and contingencies via ordinary life insurance policies. These policies combined insurance and savings in a single ...

What is the optimal path of Social Security benefits for an individual who has retired with a stock of wealth, faces stochastic mortality, and has no access to annuities and no preferences for ...