Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 97 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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The Role of Protest Experience and Social Networks in Protest Movements in Hong Kong

Leonardo Bursztyn
Davide Cantoni
David Yang
Noam Yuchtman
Y. Jane Zhang
In Hong Kong, researchers conducted a randomized evaluation to test the impact of indirectly incentivizing protest participation on sustained participation in a political movement and to identify the role social networks play in protest turnout. Indirectly incentivizing participants to attend a...
Man carries buckets of water to house in dry landscape

Harvesting Rainfall: Experimental Evidence from Cistern Deployment in Northeast Brazil

Gustavo Bobonis
Paul Gertler
Marco Gonzalez-Navarro
Simeon Nichter
Distributing water cisterns in northeast Brazil led to fewer requests for private benefits from local politicians and fewer votes for incumbent mayors, who typically have more resources to engage in clientelism. Marco Gonzalez-Navarro and J-PAL's Latin America & Caribbean office are now working with...
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The Persuasive Effects of Televised Campaign Ads

Alan Gerber
James G. Gimpel
Donald Green
Daron R. Shaw
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Do Phone Calls Increase Voter Turnout in the United States?

Alan Gerber
Donald Green
Women gather around pond with well pump

Belief Formation of Risks of Arsenic in Bangladesh

Lori Bennear
Alexander van Geen
Alexander Pfaff
H. B. Soumya
Alessandro Tarozzi
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Personality Traits and Responses to Persuasive Appeals among Voters in the United States

David Doherty
Conor M. Dowling
Alan Gerber
Gregory A. Huber
Costas Panagopoulos
People look at tablet on donation page

Donor Response to Aid Effectiveness in a Direct Mail Fundraising Experiment in the United States

Dean Karlan
Daniel H. Wood
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Default Effects and Follow-On Behavior: Evidence From An Electricity Pricing Program

Patrick Baylis
Peter Cappers
Meredith Fowlie
C. Anna Spurlock
Catherine Wolfram
Researchers partnered with the Sacramento Municipal Utility District in California to evaluate the effects of a variety of enrollment schemes in time-varying pricing plans on electricity consumption. Results show that households which were enrolled in time-varying pricing plans by default tended to...