IT IS perhaps a measure of America’s resilience as an economic power that its demise is so often foretold. In 1956 the Russians politely informed Westerners that “history is on our side. We will bury you.” In the 1980s history seemed to side instead with Japan. Now it appears to be taking China’s part.
Buoyed by these two forces, China will account for over 23% of world GDP by 2030, measured at PPP, Mr Subramanian calculates. America will account for less than 12%. China will be equally dominant in trade, accounting for twice America’s share of imports and exports. That projection relies on the “gravity” model of trade, which assumes that commerce between countries depends on their economic weight and the distance between them. China’s trade will outpace America’s both because its own economy will expand faster and also because its neighbours will grow faster than those in America’s backyard.