The basic economic model of labor supply has a very clear prediction of what we should expect when an adult receives an unexpected cash windfall: they should work less and earn less. This intuition underlies concerns that many types of cash transfers, ranging from government benefits to migrant...

Recent evidence suggests that conditional cash transfer programs for schooling are effective in raising school enrollment and attendance. However, there is also reason to believe that such programs can affect other outcomes, such as the sexual behavior of their young beneficiaries. Zomba Cash...

Are the large enrollment effects of conditional cash transfer programs a result of the conditions or simply the cash? This paper presents the first experimental evidence on the effectiveness of conditionality in cash transfer programs for schooling. Using data from an intervention in Malawi that...

This paper formalizes the design of experiments intended specifically to study spillover effects. By first randomizing the intensity of treatment within clusters and then randomly assigning individual treatment conditional on this cluster-level intensity, a novel set of treatment effects can be...