quote
Cities aren’t full of poor people...
Cities aren’t full of poor people because cities make people poor, but because cities attract poor people with the prospect of improving their lot in life. [Thereofre] we should worry more about places with too little poverty. Why do they fail to attract the least fortunate?
Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Greener, Healthier, and Happier (New York: Penguin, 2011), pp.70-71.