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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.

Circumcision, Information, and HIV Prevention in Malawi

Researchers evaluated an information campaign in rural Malawi to examine the impact of providing information about voluntary medical male circumcision and HIV transmission risk on beliefs and sexual behavior. The program reduced risky sexual behavior among uncircumcised men, but did not increase...

Evaluating the Impact on Anemia of Making Double Fortified Salt Available in Bihar, India

Sharon Barnhardt
In Bihar, India, researchers examined how double fortified salt could be most effectively priced, marketed, and distributed in order to have the greatest impact on a range of health, education, and economic outcomes.

Information and Price Variations to Reduce Residential Energy Use in the United States

David Rapson
Researchers evaluated the effects of introducing price increases during peak periods and also real-time information about electricity usage to residential customers in the United States. Households that received feedback about usage reduced consumption and individuals were more responsive to pricing...

Contracting for Health in Cambodia

Indu Bhushan
Erik Bloom
David Clingingsmith
Rathavuth Hong
Elizabeth King
Brad Schwartz

Mobile Phone-Based Extension Services and Agricultural Advice for Cotton Farmers in India

Researchers introduced a mobile phone-based agricultural extension service to evaluate its impact on knowledge and adoption of effective farming methods among cotton farmers in Gujarat, India. They found that the service was highly effective in nudging farmers to adopt a number of recommended...

The Impact of Contraceptive Subsidies for Individuals in the United States

Martha Bailey
Jennifer Barber
Lea Bart
Vanessa Dalton
Daniel Eisenberg
Paula Fomby
Vanessa Lang
Alexa Prettyman
Iris Vrioni
In this randomized evaluation, researchers partnered with Planned Parenthood of Michigan to give vouchers for contraception to evaluate the impact of contraceptive costs on method choice. Those who received the vouchers were more likely to buy contraceptives and buy more expensive methods than those...

Changing Pedagogy to Improve Math Skills in Preschools in Peru

Mariana Alfonso
Emma Naslund-Hadley
In Peru, researchers evaluated the impact of a tailored inquiry- and problem-based learning approach on preschoolers’ performance in math. The program improved overall mathematics outcomes, which persisted for some content areas even one year after the program ended.

Social Pressure and Voter Turnout in the United States

Christopher Larimer
To study the effect of increased social pressure on turnout, researchers sent households one of four randomly selected mailings eleven days before Michigan’s August 2006 primary election. All four mailings increased turnout, but informing households of their neighbors’ past voting records raised...