"If you look at the projected percentage GDP growth from 2008 to 2025 of the top emerging and the top advanced economy cities, the comparison is stark," said John Hawksworth, head of macroeconomics at PwC. "Cities such as Shanghai, Beijing and Mumbai, for example, are projected to grow at around 6-7% per annum in real terms, whereas cities such as New York, Tokyo, Chicago and London grow only at around 2% per annum on average. In absolute terms, the projected rise in Shanghai's GDP between 2008 and 2025 is greater than the combined GDP increase for London and Paris together." The research shows that the largest 100 cities accounted for about 30% of global GDP in 2008 and some have bigger economies than medium-sized countries like Sweden or Switzerland. Full Article at Guardian Unlimited