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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...

Countering Covid-19 Misinformation through WhatsApp in Zimbabwe

In this randomized evaluation in Zimbabwe, researchers studied how social media messages targeting misinformation can affect people’s beliefs about and responses toward Covid-19. The study found that these messages increased participants’ knowledge of Covid-19 information by 7 percentage points and...

The Impact of Personalized Information on Informed School Choice in Chile

Researchers conducted a randomized evaluation to measure the impact of an information program on parental school choice and long-term student achievement. They found that the intervention shifted household school choices of those who were not enrolled before the intervention toward establishments...

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.

Improving the Targeting of Preventive Health Subsidies through Vouchers in Western Kenya

Vivian Hoffman
Alix Peterson Zwane
In Western Kenya, researchers compared three different approaches to subsidizing dilute chlorine solution to treat drinking water: a partial subsidy, a twelve month supply of free chlorine through monthly vouchers, and a twelve month supply of free chlorine hand-delivered. Safe water rates were much...