Over half of the world’s population lives in cities and cities generate more than 80 percent of Global GDP.
– McKinsey Global Institute

Global Infrastructure needs from 2005 through 2025 are estimated at $41 trillion.
– Booz Allen Hamilton

In the United States, metropolitan areas contain 84 percent of the population and generate 91 percent of GDP.
– The Brookings Institution

The world’s metropolitan areas are expected to contribute 75 percent of global growth through 2025.
– McKinsey Global Institute