We provide evidence that the robust association between cognitive skills and economic growth reflects a causal effect of cognitive skills and supports the economic benefits of effective school policy. We develop a new common metric that allows tracking student achievement across countries, over...

Researchers are often interested in estimating the causal effect of some treatment on individual criminality. For example, two recent relatively prominent papers have attempted to estimate the respective direct effects of marriage and gang participation on individual criminal activity. One...

"Although it is well known that there is a strong association between education and health much less is known about how these factors are connected, and whether the relationship is causal. Lleras-Muney (2005) provides perhaps the strongest evidence that education has a causal effect on health....