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[Washington, D.C]: World Bank, [2005] ; Online-Ausg.
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[Washington, D.C]: World Bank, [2006] ; Online-Ausg.
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Washington, D.C: The World Bank, 2005 ; Online-Ausg.
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[S.l.]: SSRN, [2016]
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[S.l.]: SSRN, [2015]
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[S.l.]: SSRN, [2015]
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Cambridge, Mass: National Bureau of Economic Research, August 2013
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Cambridge, Mass: National Bureau of Economic Research, January 2012
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Cambridge, Mass: National Bureau of Economic Research, March 2004
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[S.l.]: SSRN, [2016]
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Cambridge, Mass: National Bureau of Economic Research, March 2016
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[S.l.]: SSRN, [2016]
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Cambridge, Mass: National Bureau of Economic Research, January 2013
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[S.l.]: SSRN, [2013]
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Cambridge, Mass: National Bureau of Economic Research, January 2009
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[S.l.]: SSRN, [2010]
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Cambridge, Mass: National Bureau of Economic Research, November 2011
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[S.l.]: SSRN, [2011]
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[S.l.]: SSRN, [2006]
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[S.l.]: SSRN, 2002