Economic Dominance by Country

From The Economist:

By 2030 China’s share of global economic power will match America’s in the 1970s and Britain’s a century before. Three forces will dictate China’s rise, Mr Subramanian argues: demography, convergence and “gravity”. Since China has over four times America’s population, it only has to produce a quarter of America’s output per head to exceed America’s total output.

Source:

Spheres of Influence (The Economist)