Using a new data set on annual deaths from disasters in 57 nations from 1980 to 2002, this paper tests several hypotheses concerning natural disaster mitigation. While richer nations do not experience fewer natural disaster events than poorer nations, richer nations do suffer less death from disaster. Economic development provides implicit insurance against nature's shocks. Democracies and nations with higher quality institutions suffer less death from natural disaster. The results are relevant for judging the incidence of a Global Warming induced increase in the count of natural disaster shocks.

More than 19 percent of people in American central cities are poor. In suburbs, just 7.5 percent of people live in poverty. The income elasticity of demand for land is too low for urban poverty to come from wealthy individuals' wanting to live where land is cheap (the traditional explanation of urban poverty). A significant income elasticity for land exists only because the rich eschew apartment living, and that elasticity is still too low to explain the poor's urbanization. The urbanization of poverty comes mainly from better access to public transportation in central cities.

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Edward L. Glaeser thanks the NSF for financial support. Jan Brueckner, Vernon Henderson, Andrei Goureev and Jacques Thisse provided extremely helpful comments. This was written as a chapter for Volume IV of the Handbook of Urban and Regional Economics. The views expressed herein are those of the authors and not necessarily those of the National Bureau of Economic Research.