This paper is a practical guide (a toolkit) for researchers, students and practitioners wishing
to introduce randomization as part of a research design in the field. It first covers the …

Growth theory has traditionally assumed the existence of an aggregate production function,
whose existence and properties are closely tied to the assumption of optimal resource …

Targeted transfer programs for poor citizens have become increasingly common in the
developing world. Yet, a common concern among policy-makers and citizens is that such …

Conditional Cash Transfer (CCT) programs aim to reduce poverty by making welfare
programs conditional upon the receivers' actions. That is, the government only transfers the …

Problems involving causal inference have dogged at the heels of statistics since its earliest
days. Correlation does not imply causation, and yet causal conclusions drawn from a …

This paper makes the case for greater use of randomized experiments “at scale.” We review
various critiques of experimental program evaluation in developing countries, and discuss …

Growing consensus indicates that progress in tuberculosis control in the low-and middle-
income world will require not only investment in strengthening tuberculosis control …

This article evaluates the impact of a large cash transfer program in South Africa on
children's nutritional status and investigates whether the gender of the recipient affects that …

We quantify the lasting effects of childhood health and economic circumstances on adult
health, employment and socioeconomic status, using data from a birth cohort that has been …

This article reexamines the argument that targeted programs increase pro‐incumbent voting
by persuading beneficiaries to cast ballots against their first partisan choice. The evidence …