They must keep powerful property developers happy, not alienate hundreds of millions of Chinese who think they should be able to own their homes, and somehow repeal the lawofsupplyanddemand.
However, just thinking of economics 101, the lawofsupplyanddemand implies that if less of something is available there is a good chance the price of what on the market will increase.
The lawofsupplyanddemand tells us that we are going through a typical phase when industries mature and buyers start focusing on prices rather than features.
This is the lawofsupplyanddemand at its efficient best: Strong demand from retail investors has helped push these stocks to stratospheric heights because of the number of shares available for trading.