Ben Muse points to a study by the US Department of Agriculture titled China: A Study of Dynamic Growth:

Few countries have been able to match China’s sustained economic growth, which has averaged more than 8 percent annually since 1978. The combination of size and rapid growth make China’s economy a major driver in global economic change. China’s growth has been largely investment driven, with investment consuming roughly 40 percent of gross domestic product. Gains in factor productivity were realized after China abandoned strict central planning. China’s opening to foreign trade and investment has also been a key to growth. Conditions suggest that rapid growth will continue in coming years. However, the Chinese economy faces potentially
unsustainable pressures, including possible currency appreciation, rising rural-urban inequality, unemployment, banking reforms, and an unusual combination of inflationary and deflationary tendencies that could slow China’s growth.

Given the country is getting used to so continuous rapid growth, these policy challenges are vital if the CCP plan to hold on to power in the years ahead. Their successful economic stewardship has helped their hold on power now that Communism is a proven failed ideology. They have no room for errors.

This study complemetns another I recently wrote about: China's uneven progress against poverty, which looks more closely at how China has been so successful in eradicating poverty and the further challenges in dealing with it.

The underlying conclusion from both studies is simple: what has worked until now will not sustain China's economic growth going forward. The question is how can China change its model to achieve sustainable growth?