Demographics rule

Beyond the Census: America's Demographic Advantage - Newsweek.com

"Perhaps an even more important demographic gap is emerging between the United States and East Asia. Over the past few decades a rapid expansion of their workforce fueled the rise of the East Asian tigers, the great economic success story of our epoch. Yet within the next four decades, a third or more of their populations will be older than 65, compared with only a fifth in America. By 2050, according to the United Nations, roughly 30 percent of China's population will be more than 60 years old. Lacking a developed social-security system, China's rapid aging will start cutting deep into the country's savings and per capita income rates. A slowdown of population growth in poor countries can offer a short-term economic and environmental benefit. But in advanced countries, a rapidly aging or decreasing population does not bode well for societal or economic health."