History of World GDP

Great Graphic:  http://www.economist.com/node/16834943

Economist Cover Story

China v. India

http://www.economist.com/node/16846256

http://www.economist.com/node/16843717

Also, see

Yasheng Huang and Tarun Khanna’s ""Can India overtake China?", Foreign Policy, July/August 2003 

http://www.hvk.org/articles/0703/6.html

and,

Yasheng Huang’s "The Next Asian Miracle," Foreign Policy, July/August, 2008.