"For much of its history, human population growth increased at a glacial pace. The demographic rate only soared about 200 years ago, climaxing in the period 1950-2000. In that 50-year span, the population grew more than it had in the previous 5000 years. Though these raw numbers are impressive,...

During recent years there has been an increasing awareness of the explanatory power of demographic variables in economic growth regressions. We estimate a new model of the effects of age structure change on economic growth. We use the new model and recent probabilistic demographic projections...

Acknowledgments -- Lessons from demography -- Introduction -- "The wonderful, terrible, inscrutable economy" -- Historical change, economic behavior, and demographics -- The demographic portrait -- Generation X and the effects of population change -- What this portrait tells us -- Implications...