Is Deworming the Single Best Thing in Development Economics?

The first study that looked at schooling was really just the beginning. The kids who receive d worming when they're an elementary school are more likely to go on to secondary school. When we track them even farther, n 15 and 20 years down the line, we see large benefits in terms of labor market earning. So they earn, on average, something like ten to 14 % more per year each year after de-worming.