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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.

Weekday vs. Weekend Text-Based Parenting Support in the United States

Hans Fricke
David Song
Ben York
In Texas, researchers conducted a randomized evaluation to test the impact of text message-based parenting support delivered at different times of the week on young children’s literacy and numeracy development. They found that text messages delivered on weekends were best for supporting children...

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...

Laser-Branding Technologies to Increase the Quality of Watermelons in Chinese Markets

Researchers conducted a randomized evaluation to test the impact of different types of labels to signal product quality on sellers’ ability to develop a reputation for consistently selling high-quality watermelons in China. The more expensive laser-cut label influenced sellers to provide higher...

Voluntary Counseling and Testing to Reduce Risky Sexual Behaviors and Increase Schooling Investments in Malawi

Erick Gong
Berk Özler
Researchers introduced a Voluntary HIV Counseling and Testing (VCT) program to young females in Malawi to determine whether the program affects risky sexual behavior and school performance. They found no overall effect of VCT on risk of sexually transmitted infections or achievement test scores...

The Impact of Offering Pay-as-you-go Car Insurance on Covering Drivers in California

Researchers conducted a randomized evaluation to test the impact of introducing a pay-as-you-go car insurance contract, which reduces minimum purchase requirements, to uninsured drivers in California. Applicants who were offered this type of insurance were nearly twice as likely to purchase car...

Relationship Banking in India

Researchers evaluated whether the intensity of personalized interaction between borrowers and loan officers in India influenced borrowers’ repayment behavior. They found that clients with personal relationship managers at the bank had better repayment behavior but were not more satisfied with their...