Poor families around the world spend a large fraction of their income on consumption of goods that appear to be useless in alleviating poverty, while saving at very low rates and neglecting investment in health and education. Such consumption patterns seem to be related to the persistence of...

This research advances an evolutionary growth theory that captures the pattern of life expectancy in the process of development, shedding new light on the sources of the remarkable rise in life expectancy since the Agricultural Revolution. The theory suggests that social, economic and...

We propose a theory by which geographic variations in the transparency of the production process explain cross-regional differences in the scale of the state, in its hierarchical structure, and in property rights over land. The key linkage between geography and these institutions, we posit, is...

This paper offers micro-foundations for the dynamic relationship between technology and population in the pre-industrial world, accounting for both technological progress and the hitherto neglected but common phenomenon of technological regress. A growing population engenders the endogenous...

This paper develops a growth model in which the endogenous evolution of technological progress and wage inequality is consistent with the observed pattern in the United States and several European economies in the last two centuries. The model accounts for: a) the rise in wage inequality between...

This paper examines the effect of inequality on the incentives to emigrate according to a person’s observable and unobservable skills. Borjas (1987) shows that higher skilled individuals are more likely to emigrate than lower skilled individuals when the returns to skill are higher in a...

This research develops an evolutionary growth theory that captures the interplay between the evolution of mankind and economic growth since the emergence of the human species. This unified theory encompasses the observed evolution of population, technology and income per capita in the long...

This paper presents a unified theory that provides an intertemporal reconciliation between conflicting viewpoints about the effect of inequality on economic growth. It argues that the replacement of physical capital accumulation by human capital accumulation as a prime engine of economic growth...

This Paper develops a theory of fertility and child educational choice that offers an explanation for the persistence of poverty within and across countries. The joint determination of the quality (education) and quantity of children in the household is studied under the key assumption that...

This research suggests that the distribution of land within and across countries affected the nature of the transition from an agrarian to an industrial economy, generating diverging growth patterns across countries. Land abundance, which was beneficial in early stages of development, generated...