Today's good news may be tomorrow's worry.

Having written about the Chinese economy for many years, you notice the phenomenon that when the whole world (outside China) is talking about this country's coming economic debacle, it is actually heading for a healthy turn. And when the whole world is celebrating China's good numbers, it may soon slip back to some "complicated situation", as the high-level PR euphemism goes.

This is because business cycles in China tend to be smaller as a result of frequent government interference. New trends and concerns can arise every three months.