Joel Kotkin wrote an article about the "The world's fastest-growing cities". It's an interesting piece seasoned with a bit of controversy*. If anyone gets interested in the case of Campinas/Brazil, I recommend this paper (here) from my colleagues at NEPO (Population Studies Center /UNICAMP). It makes clear that "Bigger often does not mean better".
ps. The Metropolitan Area of Campinas is not growing that fast. Its population growth rate (average geometric rate of annual growth) from 2000 to 2009 was estimated as 1.90% with a declining trajectory.
* E.g. "Overall, the populations of Europe's cities are growing at barely 1%, the lowest rate of any continent. With low birthrates and growing opposition to immigration, it seems unlikely that any European city will emerge as a bigger global player in 20 years than today."