It was a rare moment, sitting among about 100 young reporters mainly from media in the Pearl River Delta, listening to a talk by Wang Shi, probably the largest property developer on the Chinese mainland, focusing on the "bursting" of the economic bubble.

He did not give a time frame, but said, emphatically, that the present near frenzy in stock and property investment, is not sustainable, and will one day come to the point of explosion or find other ways to release internal pressure.

One does not usually encounter a leading entrepreneur expressing such views on macro-economics.