This mixed methods study investigates why fewer than one in five impact evaluations integrates a value-for-money analysis of the development intervention being evaluated. This study distills four main insights from combined analysis of 33 semi-structured and unstructured interviews, surveys of...

As evidence from rigorous impact evaluations grows in development, there have been more calls to complement impact evaluation analysis with cost analysis, so that policy makers can make investment decisions based on costs as well as impacts. This paper discusses important considerations for...

We meta-analyze enrollment, attendance and dropout impact and cost-effectiveness estimates from forty-two CCT program evaluations in fifteen developing countries. Average impacts and cost-effectiveness estimates for all outcomes in primary and secondary schooling are statistically different from...

We meta-analyze for impact and cost-effectiveness 94 studies from 47 conditional cash transfer (CCT) programs in low- and middle-income countries worldwide, focusing on educational outcomes that include enrollment, attendance, dropout and school completion. To conceptually guide and interpret...