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More oil, less democracy: Evidence from worldwide crude oil discoveries / Kevin K. Tsui, VoxEU.org, 21 May 2011http://www.voxeu.org/index.php?q=node/6537It has been widely argued that natural-resource wealth is a curse  that leads to corrupt politicians, closed and illiberal societies, and  defunct economies. This column presents new evidence on the political  impacts of oil wealth. It argues that the effects depend on geology and  history, shedding light on the recent uprisings in the Middle East and  North Africa...