Many authors have estimated and found that the productivity growth in agriculture was higher than that in non-agriculture … in today’s richest countries. Several papers suggested that growth in agricultural productivity was essential for today …’s richest countries to take off early. However, few articles noticed that growth in agricultural productivity is critical in …

that changes affecting agriculture have large aggregate effects. Thus, it seems reasonable that agricultural productivity …. In fact, agriculture in most developing countries has very low productivity relative to the rest of the economy … from agriculture. Many rural people in the developing world are poor, and conversely, most of the world's poor people …