Acemoglu and Johnson (2007) present evidence that improvements in population health do not promote economic growth. We show that their result depends critically on the assumption that initial health has no causal effect on subsequent economic growth. We argue that such an effect is likely,...

In a recent paper, Acemoglu and Johnson (2007) argue that the large increases in population health witnessed in the 20th century may have lowered income levels. We argue that this result depends crucially on their assumption that initial health and income do not affect subsequent economic...

The proportion of a country's population living in urban areas is highly correlated with its level of income. Urban areas offer economies of scale and richer market structures, and there is strong evidence that workers in urban areas are individually more productive, and earn more, than rural...

This paper reports a negative relationship between the size of the shadow economy and generalized trust, in a sample of countries, both developed and developing. That relationship is robust to controlling for a large set of economic, policy, and institutional variables, to changing the estimate...

We investigate the impact of investment on growth in a sample of developed and developing countries, conditioning the marginal effect of investment on institutional quality. The panel structure of our dataset allows controlling for unobserved heterogeneity and dealing with the risk of...

This paper studies the impact of social trust and formal legal and institutional determinants of capital accumulation in a panel of countries. It reports that formal determinants and trust interact, and that the two are substitutes. Specifically, the marginal impact of formal legal institutions...