We use a multi-country field experiment that combines random variation at the treatment level with exogenous variation in the length of exposure to treatment to test the effect of a slum-housing intervention on the evolution of housing aspirations of untreated co-resident neighbors over time....

We use a multi-country field experiment to test the effect of a slum-housing intervention on the housing aspirations of non-beneficiary neighbors. Initially after treatment, nontreated households' aspirations to upgrade their dwelling are significantly higher compared to the treatment group,...

We use a multi-country field experiment to test the effect of a slum-housing intervention on the housing aspirations of non-beneficiary neighbors. Initially after treatment, nontreated households' aspirations to upgrade their dwelling are significantly higher compared to the treatment group,...

We investigate the mechanisms underlying health promotion campaigns designed to eliminate open defecation in at-scale randomized field experiments in four countries: India, Indonesia, Mali, and Tanzania. Health promotion works through a number of mechanisms, including: providing information on...

This paper provides experimental evidence on the effect of increased competition on prices and quality in the retail sector. We randomized the entry of 61 firms into 72 markets serving the beneficiaries of a conditional cash transfer program in the Dominican Republic. Six months after the...