Abstract “Nudge”-style interventions are often deemed successful if they generate large
behavior change at low cost, but they are rarely subjected to full social welfare evaluations …

Abstract “Site selection bias” can occur when the probability that a program is adopted or
evaluated is correlated with its impacts. I test for site selection bias in the context of the …

The fetal origins hypothesis asserts that nutrient deprivation in utero can raise chronic
disease risk. Within economics, this hypothesis has gained acceptance as a leading …

This NCEE Technical Methods report examines how to address the problem of missing data
in the analysis of data in Randomized Controlled Trials (RCTs) of educational interventions …

This paper provides experimental evidence on the effects of vocational and entrepreneurial
training for Malawian youth, in an environment where access to schooling and formal sector …

The past two decades have witnessed a surge of new research in the analysis of
randomized experiments. The emergence of this literature may seem surprising given the …

We show how to use randomized participation incentives to test and account for
nonresponse bias in surveys. We first use data from a survey about labor market conditions …

Teacher absenteeism is an important obstacle to sustained learning gains in many
developing countries. We report the results from a randomized evaluation of an adult …

Instrumental variable (IV) estimates may be difficult to interpret when there are multiple
alternatives to treatment. I consider identification of counterfactual-specific local average …

We propose a novel selectivity correction procedure to deal with survey attrition in treatment
effect models, at the crossroads of the Heckit model and the bounding approach of Lee …