OVER the coming decades, China will become a thoroughly new form of political and economic entity. Brutally competitive in both politics and world markets, innovative and resilient, China will be more dominant than any nation except America. Such a shift in the global balance of power occurs only about once every century and is comparable to the emergence of the United States as a world power a century ago. The magnitude of this change is due, in part, to a radical and rapid shift in China's governance. Because the shift has been so sudden, it is tempting to write it...