Mathematica is a mission-driven research organization committed to improving public well-being. Its Center for International Policy Research and Evaluation (CIPRE) advances that mission by supporting, promoting, and disseminating the company’s growing international work. Since 2003, we have partnered with governments, multilateral donors, foundations, universities, and nonprofit organizations to design and conduct rigorous evaluations of complex social programs in developing countries. We offer a wide range of research services, including rigorous impact evaluations, qualitative process studies, technical assistance, and systematic reviews to address the growing need for evidence-based solutions to improve the lives of people in developing countries who live in poverty. In all our projects, CIPRE combines strong methodological expertise, extensive international experience, and a collaborative approach to working with donors and implementers.