Between 1940 and 2000 there has been a substantial increase of educational attainment in the United States. What caused this trend? We develop a model of human capital accumulation that features a non-degenerate distribution of educational attainment in the population. We use this framework to...

Consider the following facts. In 1950 the richest ten-percent of countries attained an average of 8 years of schooling whereas the poorest ten-percent of countries attained 1.3 years, a 6-fold difference. By 2005, the difference in schooling declined to 2-fold. The fact is that schooling has...

Consider the following facts. In 1950, the richest countries attained an average of 8 years of schooling whereas the poorest countries 1.3 years, a large 6-fold difference. By 2005, the difference in schooling declined to 2-fold because schooling increased faster in poor than in rich countries....

Consider the following facts. In 1950 the richest ten-percent of countries attained an average of 8.1 years of schooling whereas the poorest ten-percent of countries attained 1.3 years, a 6-fold difference. By 2005, the difference in schooling declined to 2-fold. The fact is that schooling has...

productivity: a new technology is "more risky" and more productive on average. In this context, the adoption of the new technology from a low level of income (close to subsistence) generates a gradual increase in the investment to output ratio.

Consider the following facts. In 1950, the richest countries attained an average of 8 years of schooling whereas the poorest countries 1.3 years, a large 6-fold difference. By 2005, the difference in schooling declined to 2-fold because schooling increased faster in poor than in rich countries....

Low sex ratios are often equated with unfavorable marriage prospects for women, but in France after World War 1, the marriage probability of single females rose 50%, despite a massive drop in the male/female ratio. We conjecture that the war-time birth-rate bust induced an abnormal postwar...

The decision to look for a job, as well as some measures of income inequality, are closely connected with the living arrangements people choose and, therefore, are important to policymakers.

For 200 years the average number of hours worked per worker declined, both in the market place and at home. Technological progress is the engine of such transformation. Three mechanisms are stressed: (i) The rise in real wages and its corresponding wealth effect; (ii) The enhanced value of time...

What drove western population growth in the U.S. during the 19th century? The facts are: (i) The birth ratio was higher in the West than in the East. Both exhibited a secular decline. (ii) Between 1800 and 1810 net migration accounted for 88% of the rate of population growth in the northwest...