Evaluations

In Malawi, researchers tested the impact of a subsidized tree planting program and tested whether allocating contracts randomly or through self-selection resulted in better program outcomes. Self-targeting outperformed random allocation of contracts in terms of tree survival and mitigated increases...

Billions of dollars in government funds go missing each year due to corruption, but there is limited consensus on how best to tackle this global challenge. Researchers leveraged data from Brazil’s long-standing anticorruption program, which holds public lotteries to randomly select municipalities...

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.

In Uganda, researchers conducted a randomized evaluation to test the effectiveness of a program in which landowners were paid to not cut forest trees on their property. During the study period, landowners who were offered contracts to conserve forest cleared 4 percent of forested land, compared to 9...

J-PAL affiliate Benjamin Olken (MIT) devised a method to measure corruption and used it to evaluate alternative strategies to reduce corruption on Indonesian roadbuilding projects. The evaluation tested two types of strategies: encouraging community participation and increasing the probability of...

This study measured the effect of receiving free subscriptions to either a liberal or conservative-leaning newspaper on voters’ political knowledge and opinions in the United States. Results demonstrated that neither subscription had an impact on voters' political knowledge, but that both...

Researchers evaluated the effect of an unconditional cash transfer program targeting mostly men on intimate partner violence in a context where nearly forty percent of households are polygamous. Polygamous households receiving the transfer experienced less physical and emotional violence, while...

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...