This paper provides a theory that explains the cross-country distribution of average years of schooling, as well as the so called human capital premium puzzle. In our theory, credit frictions as well as differences in access to public education, fertility and mortality turn out to be the key...

This paper provides a theory that explains the cross-country distribution of average years of schooling, as well as the so called human capital premium puzzle. In our theory, credit frictions as well as differences in access to public education, fertility and mortality turn out to be the key...

Lucas (2004) asserts that "Of the tendencies that are harmful to sound economics, the most seductive, and in my opinion the most poisonous, is to focus on questions of distribution... The potential for improving the lives of poor people by finding different ways of distributing current...

We develop a tractable general equilibrium model of oligopolistic competition that allows for endogenous product differentiation and exhibits various forms of competition, ranging from perfect to monopolistic competition, simultaneously. Our unified framework provides a novel way to integrate...

Life expectancy around the world has increased substantially since 1970. In contrast, consumption per capita has fallen in some countries, remained stagnant, or sharply increased in others. What are the welfare gains of the systematic increase in life expectancy around the world? How does a...

Most education around the globe is public. Moreover, invest rates in education as well as schooling attainment differ substantially across countries. We contruct a general equilibrium life-cycle model that is consistent with these facts. We provide simple analytical solutions for the optimal...

This paper studies fertility decisions in an Aiyagari-Huggett economy extended to include endogenous fertility. The challenge is to explain both why fertility decreases with income, and why there is intergenerational persistence of inequality. The model features non-isoelastic altruism,...

This paper explores a novel way to evaluate the extent to which R&D knowledge embodied in intermediate inputs correlates with productivity at the industry level. We propose the concept of R&D content of intermediates, which represents the R&D stock embodied in intermediate goods used in...

Theoretical studies have shown that under unorthodox assumptions on preference and production technologies, collateral constraints can act as a powerful amplification and propagation mechanism of exogenous shocks. We investigate whether or not this result holds under more standard assumptions....