Search our database of 1018 randomized evaluations conducted by our affiliates in 84 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Improving Take-Up of Tax Benefits in the United States

Saurabh Bhargava

In the United States, many people who are eligible for social and economic benefits do not claim those benefits. Researchers partnered with the U.S. Internal Revenue Service (IRS) to test the effectiveness of different messages to taxpayers designed to encourage them to claim certain tax benefits.

Voting and Habit Formation in the United States

During the 1998 state and federal elections and the 1999 city elections in New Haven, Connecticut, researchers found that face-to-face canvassing and direct mail appeals significantly increased voter turnout not only during the election year but also in the election a year after.

Radio Public Service Announcements and Voter Participation Among Native Americans in the United States

Eline de Rooij

Can media campaigns increase voter turnout among those underrepresented in the electorate? Researchers randomly assigned areas covered by Native American radio programming to either receive or not receive targeted radio messaging encouraging listeners to vote in the 2008 and 2010 US elections. The...