China's Property Bubble

“Once the bubble pops, our economic growth will stop,” warns Yi Xianrong, a researcher at the Chinese Academy of Social Sciences’ Finance Research Center. On Dec. 27, China Premier Wen Jiabao told news agency Xinhua that “property prices have risen too quickly.” He pledged a crackdown on speculators.
Although parallels with other bubble markets, the China bubble is not quite so easy to understand. In some places, demand for upper middle class housing is so hot it can’t be satisfied. In others, speculators keep driving up prices for land, luxury apartments, and villas even though local rents are actually dropping because tenants are scarce. What’s clear is that the bubble is inflating at the rich end, while little low- cost housing gets built for middle and low-income Chinese.
In Beijing’s Chaoyang district, which represents a third of all residential property deals in the capital, homes now sell for an average of almost $300 per square foot. That means a typical 1,000-square-foot apartment costs about 80 times the average annual income of the city’s residents.

Bloomberg