"The paper reviews the literature on the characteristics and impact of opinion leaders on the diffusion of new knowledge, concluding that there is no clear evidence on whether opinion leaders are more effective if they are similar in socioeconomic attributes to the other farmers rather than...

"This paper analyzes changes in the allocation of child labor within the household in reaction to exogenous shocks created by a social program in Nicaragua. The paper shows that households that randomly received a conditional cash transfer compensated for some of the intra-household differences,...

"A variety of theories of skill formation suggest that investments in schooling and other dimensions of human capital will have lower returns if children do not have adequate levels of cognitive and social skills at an early age. This paper analyzes the impact of a randomized cash transfer...