We study how a monopolist’s use of consumer data for price discrimination affects welfare. To answer this question, we develop a model of market segmentation subject to residual uncertainty. We fully ...

Climate change is already increasing temperatures and raising the frequency of natural disasters in the United States. In this paper, we examine several major vectors through which climate change ...

Does ambiguity (Knightian uncertainty) or risk provide a greater discouragement to investment? There is general agreement in the financial press that uncertainty discourages investment, with ...

Mutual funds create liquidity for investors by issuing demandable equity shares while holding illiquid securities. We study the implications of this liquidity creation by examining frequent trading ...

This paper examines a large-scale randomized evaluation of the One Laptop Per Child (OLPC) program in 531 Peruvian rural primary schools. We use administrative data on academic performance and grade ...

We compare the lending technology of direct lenders, banks, and finance companies using a unique data set on secured borrowing by the universe of U.S.-based private middle market firms. The borrowers ...

Consistent with this shortage, we estimate that the median social rate of return to installing an additional kilometer of two-lane highway in EMDEs is 55 percent—roughly eight times the social rate of ...

We conclude that the DEU methodology and data, as they are described in the article, do not support the conclusion that broad-based increases in market power have occurred in recent decades. This ...

Target allocation funds (TAFs) make predictable rebalancing trades to maintain portfolio weights across asset classes. During the COVID-19 stock market crash, TAFs sold $59 billion of bond fund shares ...

We use high-frequency retail microdata to measure the short-run impact of the 2025 U.S. tariffs on consumer prices. By matching daily prices from major U.S. retailers to product-level tariff rates and ...

In addition, all visitors to the NBER website are eligible for 3 free downloads each year. You have used 0 of 3.

We use comprehensive tax data to study how saving behavior responds to the Health Savings Account (HSA) “catch-up” contribution provision, which raises HSA contribution limits for individuals aged 55 ...