“…The literature for possible clues of the sustainability of stock price fluctuations may go back to several seminal works. Abundant empirical evidences imply that stock price fluctuations are explained with the subsequent variation in the stock quality [ 3 ], economic fundamentals [ 4 – 6 ], overconfidence [ 7 – 9 ], investor attention [ 10 ], subjective beliefs [ 11 ], microeconomic foundation [ 12 ], industrial policy [ 13 ], corporate social responsibility [ 14 ], monetary policy [ 15 ] and sentiment [ 16 ]. The factors that affect the fluctuations of stock price may seem so numerous, but they can be roughly divided into two categories: (1) Fundamental factors (rational factors), which include the stock quality, economic fundamentals, industrial policy, monetary policy and so on.…”