Cities are increasingly becoming recognized as the locus of economic and social development. The world has reached a tipping point, where half the world's population is already living in cities. Nearly 2 billion new urban residents are expected in the next 20 years, 90% of them in developing countries.
Gone are the days when urbanization was widely perceived as a problem that must be prevented. There is now an emerging consensus of its benefits as overall, cities provide 70% of global Gross Domestic Product. Cities CAN be engines of economic growth and expand national and individual prosperety