Megacities J. Bradford DeLong delong@econ.berkeley.edu http://www.j-bradford-delong.net/ May 2002 Source: Economist Twenty years ago the world had six cities of more than ten million people. Today it has twenty such cities. Only two of the new ten million-plus cities are in the first world--Los Angeles and Seoul. The other twelve are in the developing world, where the ability of government to manage the necessary large-scale infrastructure is much lower.

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