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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.

Local Mentorship and Business Training to Increase Profits among Microenterprises in Kenya

Researchers conducted a randomized evaluation to test the impact of two different types of business training—formal business classes and mentorship from a successful entrepreneur in the same industry—on female entrepreneurs’ profits and use of new business practices in Kenya. They found that...

The Impact of Diagnostic Feedback for Teachers on Student Learning in India

Researchers evaluated whether providing low-stakes diagnostic tests and feedback to teachers led to improved student learning outcomes in India. They found that teachers in intervention schools exerted more effort when observed in the classroom but students in these schools performed no better on...

Farmers and the fear of crime: Improving agricultural productivity through farm protection in Kenya

Julian Dyer
In Kenya, researchers matched farmers with subsidized, trained watchmen to evaluate the effect of improved farm security on farmers’ decision-making, agricultural productivity, and conflict with neighbors. Security was shown to increase and in response, farmers made different cropping, time use, and...

Improving Tax Compliance through Behavioral Messages in Latvia

Nina Mazar
Iman Sen
In partnership with the Latvian tax authority, researchers tested several types of emails to investigate the effect of behaviorally-informed messages on tax compliance. Messages that aimed to deter bad behavior by highlighting taxpayers’ moral obligations towards action increased on-time tax...

Cash Transfers During a Pandemic: Evidence from a Kenyan Slum

Terence R. Johnson
Jackline Oluoch-Aridi
Researchers conducted a randomized evaluation to test the impact of providing cash transfers to female entrepreneurs during the pandemic on their business outcomes and behavior. Firm profit, inventory spending, and food expenditures all increased for business owners that received the cash transfer...

The Impact of a Quiz-Style Information Campaign on Covid-19 Prevention in Ghana

Researchers are measuring the impact of a quiz-style information strategy on people’s learning and adherence to Covid-19 health protocols. This study is part of a three-country research program in Ghana, the US, and Zambia aiming to find evidence on the best strategies to communicate health measures...

Peer Effects, Alcohol, and College Roommates in the United States

Researchers conducted a randomized evaluation to measure the impact of having a roommate who drank alcohol frequently before college on college students' grade point averages (GPAs). Results show that, while female students' GPAs were not affected by their roommate's drinking prior to college, male...

Rates of Return to Fertilizer: Evidence from Field Experiments in Kenya

Jonathan Robinson
Researchers in Kenya collaborated with the NGO International Child Support to measure the returns to different types of fertilizer among local farmers. While results show that all interventions led to increases in yield, rate-of-return calculations indicate that not all were profitable for the...