Those who study global poverty and ways to reduce it face a perennial set of questions: Do advances in knowledge, research, and technology make a real difference in the lives of poor people? What effect does research have on the poor? Who benefits? The contributors to Agricultural Research,...

"The A stochastic frontier production function is used to estimate agricultural efficiency index. Then, controlling for household characteristics and other exogenous variables, the efficiency index is regressed on the probability of being sick. Estimation is performed using the treatment effect...