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[S.l.]: SSRN, [2014]
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[S.l.]: SSRN, [2012]
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Cambridge, Mass: National Bureau of Economic Research, February 2005
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[S.l.]: SSRN, [2016]
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[S.l.]: SSRN, 2006
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[S.l.]: SSRN, 2022
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[S.l.]: SSRN, [2017]
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[S.l.]: SSRN, 2010
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Kalamazoo, MI: W.E. Upjohn Institute for Employment Research, 2005
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Cambridge, MA: National Bureau of Economic Research, c2005 ; Online-Ausg.
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[Washington, D.C]: World Bank, [2004] ; Online-Ausg.
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Washington, D.C: The World Bank, 2011 ; 2011
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SAGE Publications, 2002
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Elsevier BV, 2014
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Clark University, 2010
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Wiley, 2010
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Elsevier BV, 2005
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World Scientific Pub Co Pte Ltd, 2011
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Elsevier BV, 2011
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Informa UK Limited, 2009