Age data frequently display excess frequencies at attractive numbers, such as multiples of five. We use this "age heaping" to measure cognitive ability in quantitative reasoning, or "numeracy". We construct a database of age heaping estimates with exceptional geographic and temporal coverage,...

The smallpox epidemic of 1781–82 in the Hudson Bay region is said to have devastated the native population, causing mortality of at least 50%. We reassess this claim using a four-pronged approach. First, we total smallpox deaths reported by two fur trading posts that were in the midst of the...

We propose a new theory of the demographic transition based on the evidence that body development during childhood is an important predictor of adult life expectancy. Fertility, childhood development, longevity, education and income growth all result from individual decisions. Parents face a...

Not only the colonial period, but also the pre-colonial times might have influenced later development patterns. In this study we assess a potential “pre-colonial legacy” hypothesis for the case of the Andean region. In order to analyze the hypothesis, we study the human capital of Inca...

We create a new dataset to test the influence of land inequality on long-run human capital formation in a global cross-country study and assess the importance of land inequality relative to income inequality. Our results show that early land inequality has a detrimental influence on math and...

Economists have long viewed recessions as contributing to increasing inequality. This conclusion is largely based on data from a period in which inequality was increasing over time, however. This Paper examines the connection between long-run trends and cyclical variation in earnings inequality....

An emerging economic literature over the past decade has made use of international tests of educational achievement to analyze the determinants and impacts of cognitive skills. The cross-country comparative approach provides a number of unique advantages over national studies: It can exploit...

Education has been given high priority by India’s central and state governments and continues to grow fast. School access has been expanded by investment in school infrastructure and recruitment of teachers. In higher education too, the number of providers continues to rise rapidly. A new law...

We investigate how the link between individual schooling and political participation is affected by country characteristics. Using individual survey data, we find that political participation is more responsive to schooling in land-abundant countries and less responsive in human...