We develop an overlapping generations model where consumption is the source of polluting emissions. Pollution stock accumulates with emissions but is partially assimilated by nature at each period. The assimilation capacity of nature is limited and vanishes beyond a critical level of pollution....

We assess the long-run growth effects of rising longevity and increasing the retirement age when growth is driven by purposeful research and development. In contrast to economies in which growth depends on learning-by-doing spillovers, raising the retirement age fosters economic growth. How...

We assess the long-run growth effects of rising longevity and increasing the retirement age when growth is driven by purposeful research and development. In contrast to economies in which growth depends on learning-by-doing spillovers, raising the retirement age fosters economic growth. How...

This paper examines how brain drain may affect the growth rate, education, and income distribution of an economy. It shows that if the engine of growth of the economy is human capital accumulation and intergenerational externality, brain drain hurts the growth rate of the economy. Brain drain...

In the second half of the 20th century, most industrialized countries experienced declining fertility, rising life expectancy and a slowdown of population growth. Standard models of R&D‐based growth predict that a decline in population growth reduces economic growth. We argue that this...

In this chapter we review the recent literature on the effects of changing global demographic trends on consumption, factor prices and social security. We also construct an overlapping generation model with four regions of the world. The model is calibrated so that we match some basic statistics...