From Joel Kotkin, writing at Forbes:
At the turn of the century, America’s biggest advantage was its relatively vibrant demographics. In sharp contrast with its major competitors — the E.U., Russia, China, Japan — the United States had maintained a far higher birthrate and rate of population growth.Another Kotkin from March:
But the 2010 Census showed that in the past decade America’s birthrate slipped below at least one European country (France) and under the pace necessary to replace our current population. Immigration, both legal and illegal, is also slowing, in part due to plunging birthrates in Mexico and other Latin American countries. As one National Geographic report from Brazil has it, women there, too, are saying: “A fábrica está fechada.” The factory is closed.
America’s sinking birthrate is in great part a function of our wobbly economy. The decline, notes the Pew Research Center, largely coincides with the onset of the 2007 real estate crash and the financial crisis the following year.
The recession had a disproportionate impact on people of child-bearing age, who suffered higher unemployment and steeper income declines than their elders. In the process, the U.S. fertility rate dropped from over 2.1 births per woman in 2007 to 1.9 last year, below replacement rate for the first time since the mid-1980s. The 2010 Census found that the number of households that have children under age 18 was 38 million, unchanged from 2000, despite a 9.7% growth in the U.S. population over that period....MORE
How A Baby Bust Will Turn Asia's Tigers Toothless
See also The Economist:
If Demographics Are Destiny: "American fertility is now lower than that of France"
And a couple more:
Demographic Destiny & The Next Secular Bull Market
Stocks and Sex: A Socionomic View of Demographic Trends