Fewer babies = more wealth opportunities

LEADERS: "Falling fertility: Astonishing falls in the fertility rate are bringing with them big benefits," The Economist, 31 October 2009.
BRIEFING: "Fertility and living standards: Go forth and multiply a lot less; Lower fertility is changing the world for the better," The Economist, 31 October 2009.
This whole treatment should be familiar to readers of my books: dropping fertility rates, which just so happen to kick in big-time around the time globalization matures in its modern form across the 1970s and 1980s, mean we add about 3B more to our 6.5B between now and 2050, topping out as a species somewhere between 9 and 9.5B.
Nothing here on the social-religious implications of humanity no longer seeing itself in procreation mode (Do we freak out a la "Children of Men"?). Rather, a focus on economic opportunity.
Neat factoid: a clear sign of the death of the revolution inside Iran is the wildly plummeting birth rate. Women are voting with their uteruses: we don't want to raise babies under this regime. Iran goes from 7 babies per woman in 1984 to just 1.5 now in Tehran (1.9 overall across the country).
Another key point: people crank babies until per cap income hits about $1-2,000, and then it drops until it hits replacement level somewhere between $4-10,000. [I need to add this to a slide of mine.]
Right now both Asians and Latinos are enjoying their Goldilocks moment of plenty of workers, and not too many kids nor elders. Of course, China's moment will disappear in under two decades--hence their extreme desire to cash in on rapid growth now while they can.