One of the most enduring debates in economics is whether financial development causes economic growth or whether it is a consequence of increased economic activity. Little research into this question, however has used a true causality framework. This paper fills this lacuna by using...

An unstable macroeconomic environment is often regarded as detrimental to economic growth. Among the sources contributing to such instability, much of the blame has been assigned to political issues. This paper empirically tests for a causal and negative long-run relationship between political...

I show that in a conventional Ramsey model, between one-fourth and one- half of income differences across countries can be explained by a single factor: The steady-state effect of large, persistent differences in national average IQ on worker productivity. These differences in cognitive...