Paul Samuelson made a series of important contributions to population theory for humans and other species, evolutionary theory, and the theory of age structured life cycles in economic equilibrium and growth. The work is highly abstract but much of it was intended to illuminate issues of...

The world's population is aging. Virtually no nation is immune to this demographic trend and the challenges it brings for future generations. Relative growth of the elderly population is fueling debate about reform of social security programs in the United States and other developed nations. In...

The paper analyses the population dynamics of a country that has two ethnic groups, a minority and a majority, and minority members can choose to assimilate into the majority. Depending on the minority's size, the long-run outcome can be full or no assimilation. Under certain parameter values...

We review the foundations of the economic development-contraception nexus, focusing on the pathways through which economic factors drive contraceptive adoption and change. We investigate the channels through which the relationship between economic development and contraceptive dynamics are...

In the postwar period, when fertility dropped substantially, immigration more than made up for the drop in population growth, and from 1950 to 2020, population increased by 73%, double the European rate, in a country with population density already among the highest in Europe. Yet, there never...

We assess quantitatively the effect of exogenous reductions in fertility on output per capita. Our simulation model allows for effects that run through schooling, the size and age structure of the population, capital accumulation, parental time input into child-rearing, and crowding of fixed...

As its workforce ages and major economies shift towards producing higher value-added goods and services, New Zealand will face increasing challenges to remain globally competitive and maintain high living standards. Future growth will need to come increasingly from productivity gains, and...

Age structure and its dynamics are critical in understanding the impact of population growth on a country’s growth prospects. Using state-level data from India, we show that the pace of demographic transition varies across states, and that these differences are likely to be exacerbated over...

Age structural transition is a process and a consequence of shiftingage structure from a young aged population to old aged population. It iswell known that economic growth in the East Asian countries wassignificantly contributed by demographic gift, that is decline in youngaged population and...

Immigration is a possible instrument for offsetting longer-run adverse effects of population aging on per capita income. Our "laboratory" is a fictional country Alpha to which we assign demographic characteristics typical of a country experiencing population aging. Simulations indicate that a...