Powerful currents have reshaped the structure of families over the last century. There has been (i) a dramatic drop in fertility and greater parental investment in children; (ii) a rise in married female labor-force participation; (iii) a decline in marriage and a rise in divorce; (iv) a higher...

During World War I (1914–1918) the birth rates of countries such as France, Germany, the U.K., Belgium and Italy declined by almost 50 percent. The age structure of these countries’ populations were significantly affected for the duration of the 20th century. In France, where the population...

How important was international immigration for the U.S. and its demography during the nineteenth century? This paper investigates, quantitatively, its effect on the westward movement of population and the regional and secular changes in fertility. Beside immigration, two alternative forces are...

What drove western population growth in the U.S. during the 19th century? The facts are: (i) Natural increase was higher in the West than in the East; and (ii) in the early stages of the settlement process, net migration could account for up to 80% of population growth in some regions. A general...

The U.S. economic development in the nineteenth century was characterized by the westward movement of population and the accumulation of productive land in the West. This paper presents a model of migration and land improvement to identify the quantitatively important forces driving this...

What caused the baby boom? And, can it be explained within the context of the secular decline in fertility that has occurred over the last 200 years? The hypothesis is that: 1. The secular decline in fertility is due to the relentless rise in real wages that increased the opportunity cost of...

General equilibrium models are used to explore the interactions between macroeconomics and the two components of population growth: natural increase and net-migration. The first questions at hand are: What caused the baby boom? Can it be explained within the context of the decline in fertility...

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...

Some facts characterizing the U.S. economic development in the 19th century are: (i) the westward movement of population; (ii) the accumulation of productive land; and (iii) the wage gap in favor of the West. An overlapping-generations model is developed, to account for these facts. The model's...

Powerful currents have reshaped the structure of families over the last century. There has been (i) a dramatic drop in fertility and greater parental investment in children; (ii) a rise in married female labor-force participation; (iii) a decline in marriage and a rise in divorce; (iv) a higher...