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[S.l.]: SSRN, [2020]
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Washington, DC: U.S. Census Bureau, Center for Economic Studies, January, 2018
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Konstanz: Bibliothek der Universität Konstanz, 2010
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World Bank, Washington, DC, 2011
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World Bank, Washington, DC, 2014
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World Bank, Washington, DC, 2008
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World Bank, Washington, DC, 2008
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Washington, DC, 2014
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[S.l.]: SSRN, [2011]
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Wiley, 2009