We randomly assign more than 6,000 students from 150 primary schools in Bangladesh to work on math assignments in one of three settings: individually, in groups with random schoolmates, or in groups with friends. The groups consist of four people and are balanced by average cognitive ability and...

A hidden cost of the COVID-19 pandemic is the stigma associated with the disease for those infected and groups that are considered as more likely to be infected. This paper examines whether the provision of accurate and focused information about COVID-19 from a reliable source can reduce...

This paper uses a randomized controlled experiment in which farmers trained on a new rice cultivation method teach two other farmers. The results show that the intervention increases yields and farm profits among treated farmers. Teacher-trainees are effective at spreading knowledge and inducing...

This paper examines the relationship between unemployment and immigration in Canada. The bi-directional causality test finds no evidence of a significant effect of Canadian immigration on unemployment. Cointegration tests indicate that there is no observed increase in aggregate unemployment due...