Abstract: The first challenge for economic growth theory is to understand the transition from stagnation to growth at the time of the Industrial Revolution and in particular to identify the main factor(s) that triggered the take-off. Doing so also helps to understand why there are poor and rich...

Beyond natural sterility, there are two main types of childlessness: one driven by poverty and another by the high opportunity cost to child-rearing. We argue that taking childlessness and its causes into account matters for assessing the impact of development policies on fertility. We measure...

This paper examines a novel mechanism linking fertility and growth. There are three components to the model. First, increases in capital per worker raise women's relative wages, since capital is more complementary to women's labour input than to men's. Second, increasing women's relative wages...

Among possible lifestyles, the DINKs (“double income no kids”) are couples choosing to be childless, while the DEWKs (“dually employed with kids”) are couples with children. We develop a theory of marriage and parenthood decisions, where we distinguish the choice to have children from...

This paper provides a new explanation for the narrowing and reversal of the gender education gap. It highlights the indirect effect of returns to human capital on parents' preferences for sons and the resulting demand for children and education. We assume that parents maximize the full income of...

This paper develops a unified model of growth, population, and technological progress that is consistent with long-term historical evidence. The economy endogenously evolves through three phases. In the Malthusian regime, population growth is positively related to the level of income per capita....

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 examines the historical evolution of the relationship between population growth, technological change, and the standard of living. It considers several unified models that encompass the transition between three distinct regimes that have characterized the process of economic...