In an influential study, Mas and Moretti (2009) find that "worker effort is positively related to the productivity of workers who see him, but not workers who do not see him". They interpret this as evidence that social pressure can reduce free riding. In this paper we report an attempt to...

In an in influential study, Mas and Moretti (2009) found that "worker effort is positively related to the productivity of workers who see him, but not workers who do not see him." They interpret this as evidence that social pressure can reduce free riding. In this paper we report an attempt to...

We estimate the impact of changes in unearned income on the height and weight of young children in a developing country. As source of variation we use changes in the eligibility criteria for receipt of an unconditional cash transfer in Ecuador. Two years after families lost the transfer, which...