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Browse news articles about J-PAL and our affiliated professors, and read our press releases and monthly global and research newsletters. For media inquiries, please email us.

Using Peer Pressure to Encourage Handwashing in Argentina

Felipe Montaño Campos
Lucía Freira
Matías Gutman
Bruno Cardinale Lagomarsino
María Laura Lanzalot
Maximiliano Lauletta
Leandro E. Malchik
Bianca Pacini
Cristian Valencia
Researchers examined the impact of peer pressure on handwashing behavior by varying whether men using a restroom in Buenos Aires, Argentina were observed by another restroom user. They found that being observed increased urinal flushing by 26.7 percent and handwashing by 19 percent, suggesting that...

The Impact of Providing Land Tax Subsidies, Local Monitoring, and Minikits on Irrigation Use in Rwanda

Maria Jones
Florence Kondylis
John Loeser
Building off of previous quasi-experimental research, researchers conducted three randomized evaluations to test the impact of providing farmers with land tax subsidies, different ways of monitoring water access and the canal’s operations and maintenance, or farming minikits on farmers' use of...

The Impact of Emergency Rental Assistance on Housing Stability during Covid-19 in the United States

Researchers leveraged existing randomization to evaluate the impact of ERA programs during the pandemic in four urban areas in the United States on measures of housing stability, financial security, and mental health. Receipt of rental assistance increased rent payment in the short term and modestly...

The Effects of a Nationwide Medicare Bundled Payment Reform Program in the United States

Researchers examined the impact of bundled payments on Medicare spending, utilization, and quality of care for knee and hip replacements, two common and expensive medical procedures. Evidence from the first year of implementation of a five-year mandatory bundled payment model showed a reduction in...

Helping Students Change their Mindsets in Norway

Sten Ludvigsen
Mari Rege
Ingeborg Foldøy Solli
David Yeager
Researchers evaluated the impact of a low-cost computer-based intervention providing information about the brain’s potential to change and grow on students’ beliefs in their abilities to learn and their subsequent effort in school. Results showed that providing this information improved students’...

Costs of Failure to Appear for Arraignment

Natalia Emanuel
Helen Ho
Researchers will conduct a randomized evaluation to test the impact of different types of notifications on rates of failure to appear in traffic and criminal misdemeanor courts.

The Impacts of Computer-Based Individualized Instruction on Math Learning in India

Andreas de Barros
Alejandro Ganimian
In partnership with an education assessment firm, researchers conducted a randomized evaluation to isolate the impact of computer-based individualized instruction in India. After nine months, lower-performing students in grades six to eight learned 22 percent of a standard deviation more in math if...