Research Briefs·Dec 17, 2025

Dynamic Competition for Sleepy Deposits

Mark L. Egan, Ali Hortaçsu, Nathan A. Kaplan, Adi Sunderam, and Vincent Yao
Most bank depositors rarely shop for better rates and stay with the same bank for nearly a decade, on average. This “sleepiness” accounts for more than half of banks’ deposit franchise value while also creating stability in the banking system.
Research Briefs·Dec 11, 2025

Comparing the Impacts of Cash vs. SNAP on Consumption of Drugs and Alcohol

Anna Chorniy, Amy Finkelstein, and Matthew Notowidigdo
Emergency department visits for drug and alcohol use increase by 20-30% following cash benefit receipt but do not respond to food stamp receipt. This is the first direct comparison showing that cash and food stamps affect consumption differently in the...
Research Briefs·Dec 3, 2025

Stop Using Test Scores to Measure Test Results

Jesse Bruhn, Michael Gilraine, Jens Ludwig, and Sendhil Mullainathan
Collapsing students’ responses to individual test questions to single scores discards useful information about teacher efficacy and student knowledge that predicts outcomes like graduation, discipline, and future earnings.
Research Briefs·Dec 1, 2025

Social Pressure Drives Parents to Adopt AI that May Harm Students

Leonardo Bursztyn, Alex Imas, Rafael Jiménez-Durán, Aaron Leonard, and Christopher Roth
Parents feel pressured to adopt AI for their children’s education if they know that other children are using the technology, despite its uncertain long-term consequences. This social pressure outweighs parents’ personal desire to restrict AI use in classrooms.
Research Briefs·Nov 18, 2025

The Mortgage Debt Channel of Monetary Policy when Mortgages are Liquid

Matthew Elias, Christian Gillitzer, Greg Kaplan, Gianni La Cava, and Nalini Prasad
Despite the aggressive post-pandemic rate hikes, which pushed Australian mortgage rates up by over 4 percentage points and monthly payments up by $13,800, adjustable-rate borrowers did not cut their spending because they tapped into large savings buffers they had built...
Research Briefs·Nov 13, 2025

Closing Early Math Gaps by Parental Education with Technology at Home

Daniela Bresciani Andaluz, Ariel Kalil, Haoxuan Liu, Susan Mayer, and Rohen Shah
A six-month experiment with 459 diverse Chicago families shows that providing high-quality math apps to children of parents without college degrees improved their math skills by 0.17 standard deviations, closing roughly one-third of the initial education-based achievement gap. The intervention...
Research Briefs·Nov 10, 2025

Debt and Assets

Efraim Benmelech, Nitish Kumar, and Raghuram Rajan
Contrary to conventional wisdom, much unsecured debt is implicitly asset backed, and the degree to which unsecured debt is asset backed can change with a firm’s condition and macroeconomic conditions. Asset values can also affect the price of borrowing, notably...
Research Briefs·Nov 6, 2025

Who Pays for Tariffs Along the Supply Chain? Evidence from European Wine Tariffs

Aaron B. Flaaen, Ali Hortaçsu, Felix Tintelnot, Nicolás Urdaneta, and Daniel Xu
Although foreign producers partially absorbed the 2019 US tariffs on European wines by lowering their prices, domestic markups amplified the cost as it moved through the supply chain, ultimately causing US consumers to pay more in dollar terms than the...
Research Briefs·Oct 30, 2025

Jealousy of Trade: Exclusionary Preferences and Economic Nationalism

Alex Imas, Kristóf Madarász, and Heather Sarsons
Many voters support tariffs and protectionist policies that materially hurt them because they derive value from consuming or possessing goods that others want but do not have. Individuals with such “exclusionary preferences” are significantly more willing to accept higher prices...
Research Briefs·Oct 23, 2025

Five Facts about the First-Generation Excellence Gap

Uditi Karna, John List, Andrew Simon, and Haruka Uchida
First-generation students—those whose parents lack college degrees—represent 70% of the student population but only 40% of top academic performers. Large excellence gaps emerge by 3rd grade and persist through high school, with socioeconomic status and school quality explaining only one-third...