China's share of the global economy is falling by the most since Mao Zedong, and the historic turn could 'reorder the world'

• China's share of world GDP is on pace to shrink 1.4 percentage points over two years, Ruchir Sharma wrote in the Financial Times.
• It's the largest decline since the 1960s and 1970s, when Mao Zedong oversaw a weak economy.
• "In a historic turn, China's rise as an economic superpower is reversing," Sharma said.

The Chinese economy's decades-long run of tremendous growth has finally found its end, Ruchir Sharma wrote in the Financial Times in November.

Now, the world's second-largest economy accounts for a smaller share of global GDP.