Scientific American: If You Can Make it There… Cities Are the Greatest Generators of Innovation and Wealth
Are you one of those people who think of big cities as little more than hotbeds of pollution, crime and social inequalities? Well, think again. A new report in this week's Proceedings of the National Academy of Sciences USA confirms what many city dwellers, who account for the bulk of people on Earth, have claimed for years: Cities have an almost magical ability, spurred by increased human interaction, to stimulate innovation and increase wealth.
The report also pooh-poohs the popular comparison of the growth of cities with biological organisms. An animal slows as it balloons in size ; in contrast, the researchers note, cities speed up as population and everything from crime to per capita income grow.
Cities create a sort of "urban economic miracle," says study co-author Luis Bettencourt, a research scientist in Los Alamos National Laboratory's Theoretical Division. "When you integrate all these people and all these activities and the struggle to make a living, total productivity increases," he says.
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"The practical application of this work is that the problem is not large cities, the problem is the conditions in which some people live in large cities," says study co-author Jose Lobo, an economist at A.S.U.'s School of Sustainability in Tempe. "Policies should be directed to making large cities more livable"—for instance, enacting legislation or spending money to alleviate poverty and crime, the negative effects of growth.
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