Clearly there's a huge difference in how India and its arch-rival China work on the ground. China is spectacularly effective in building infrastructure and is now reinvesting almost half its GDP. Meanwhile, India is still a "promising" economy: more than half its GDP is consumed by its billion-plus people, yet India has some unique advantages: Half its population is under twenty-five, giving it a strong demographic edge; 350 million Indians understand English, making it the largest English-speaking country in the world; and it's the world's largest democracy.

He notes that China and India were both quick to recover from the financial crisis, but China's rebound was accompanied by huge debt and deflation, with weak demand. India's turnaround was sturdier, with lower debt and modest inflation. So India's GDP grew twice as fast as China's for a few quarters-the first time that had happened in nearly three decades. And in contrast to China's Yuan, which is pummeled for being artificially undervalued, India's rupee largely floats against world currencies. In the end, it might come down to one deciding factor: can India fix its governance before China repairs its politics?