Search our database of 1110 randomized evaluations conducted by our affiliates in 91 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Social Incentives and Tax Compliance in Bangladesh

Monica Singhal
Nasiruddin Ahmed
Aminur Rahman
Researchers studied the impact of an innovative taxpayer recognition program that appealed to business owners’ desires for social recognition on firms’ VAT tax compliance and payment rates in Dhaka, Bangladesh. Preliminary results suggested that in areas where some firms were already paying taxes...

Harvesting Rainfall: Experimental Evidence from Cistern Deployment in Northeast Brazil

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...

Recruiting and Motivating Community Health Workers in Zambia

The Government of Zambia partnered with researchers to test the effect of two different recruitment strategies for a newly created healthcare position, the Community Health Assistant (CHA). One strategy emphasized career opportunities and the other emphasized the contributions one could make in the...

Enrolling Informal Sector Workers in National Health Insurance in Indonesia

A key challenge to achieving universal health coverage is that non-poor informal workers are difficult to enroll and retain in government health insurance programs. Researchers conducted a randomized evaluation to test the impact of various programs, including subsidies, registration assistance and...

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.

The Impact of Meritocratic Promotions and Pay Progression on Health Care Workers' Productivity in Sierra Leone

Philipp Kastrau
Gianmarco León-Ciliotta
Researchers tested the impact of a meritocratic promotion system and beliefs about pay progression on the productivity of Community Health Workers in Sierra Leone. A combination of meritocracy and the promise of a steep salary increase after promotion led workers to make more health care visits...