Growing Size of non-USA Economies

For more than half a century, Americans could take for granted that the world economy would orbit around them. No longer. The USA today produces about 30% of world output at market prices. That figure already is down significantly from about 46% in the aftermath of World War II, when European and Japanese factories lay in ruins. And it is headed lower still as China and India continue their ascent.

Over the next generation, fast-growing developing nations are expected to see a significant uptick in their share of world output from 23% today to about 33% in 2030, according to a recent World Bank study.