Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 96 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 33-40 of 381

Measuring Competition Through Subsidies in Sierra Leone's Cocoa Market

Tristan Reed
In order to measure the level of competition among traders in Sierra Leone’s cocoa market, researchers conducted a randomized evaluation to test the impact of delivering subsidies to cocoa traders on prices that traders paid to cocoa farmers. While the bonus payments did not affect the prices paid...

Building Trust in Fertilizer Quality Among Farmers in Tanzania

Annemie Maertens
Researchers conducted an evaluation to test the impact of an information campaign about fertilizer quality on farmers’ beliefs and their purchase and use of fertilizer. The information campaign led farmers to change their beliefs about the quality of fertilizer available in local markets and to buy...

The Impact of Government-run Remedial Education Programs on Student Learning in Ghana

Building on previous research, researchers in this study evaluated the impact of several targeted instruction programs on the learning outcomes of primary school students in Ghana’s public schools. Researchers found significant improvements in numeracy and literacy on average; of the four...

The Effects of Middle School Scholarships on Child Marriage in Niger

Elise Huillery
Mathilde Sage
The Government of Niger, the National Institute of Statistics, and the World Bank partnered with researchers to evaluate the impact of secondary school scholarships for girls on skill development, empowerment, and job opportunities.

Online Customer Discrimination against Female Workers in Sub-Saharan Africa

Erin Kelley
Matthew Pecenco
Edward Rubin
Researchers evaluated the impact of gender-based discrimination on female teleworkers’ productivity in online sales interactions with customers in Africa. When a customer chat representative had a female-sounding name, it led to significantly fewer purchases, and slower and more reserved reactions...