ANBOUND's chief researcher Chan Kung warns that China's economy is entering a mature stage and it can no longer maintain a double digit growth in the long run. Over the next three decades, China’s economic growth will be gradually decline to 7%, 6% and 5% respectively during every decade. Chan Kung believes that it is extremely difficult for China to achieve previous high growth rates in the future, the economic forecast by some of the Chinese economists are over optimistic.