China's economy is just beginning. It hasn't much trickled down to the population yet. When it does, their growth will also come to a screeching halt.
Yes, and their huge labor resource is being tapped with foreign capital and job creation. As their middle class swells, as it is doing right now, the overall population with shrink. The biggest problem this trend is demonstrating at the moment is the old school persons unable to adapt to a modern, information based economy, being left out of the economic boom. Many of them are retired and live on fixed incomes. They will likely not be the recipients of the enormous and largely still untapped potential for rapid economic growth.
Right now, Chinese policy makers and commentators are concerned about the coming generations lacking sufficient numbers to sustain its projected need for a young workforce.
Right now, China is still a gold mine of economic opportunity, not just for native Chinese persons, but for anyone with an entrepreneurial spirit, some capital or financing, and a willingly to risk everything, including become an ex-patriot, for a huge potential reward. Untold billions are being made every year through enterpreneurism. That trend will continue for some time, and China will likely rival or even overtake the US in economic weight in the coming decades.
Another poster above remarked about how countries like Canada and Australia should clamp down on immigration from China and India due to their largely being "non-compliant" will local laws. My anedoctal observations and experiences with local Chinese and Indian immigrants have led me to believe that they tend to be from relatively wealthy families and to have high levels of education. In particular, Indians in my city are overmost overwhelmingly in learned and highly skilled professions, such as medicine, engineering, and information technology. They seem to be very law-abiding as well, as I almost never see any of them in criminal courts. Come to think of it, I cannot recall any instance in which I saw a Chinese immigrant in court facing a criminal offense other than a traffic violation.
AS