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[S.l.]: SSRN, [2013]
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[S.l.]: SSRN, [2010]
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[S.l.]: SSRN, [2016]
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[S.l.]: SSRN, [2011]
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Berlin: Wissenschaftszentrum Berlin für Sozialforschung (WZB), 2006
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Bonn, Germany: IZA - Institute of Labor Economics, June 2021
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[S.l.]: SSRN, [2021]
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Bonn: Institute of Labor Economics (IZA), 2021
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[S.l.]: SSRN, [2021]
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[S.l.]: SSRN, [2021]
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[S.l.]: SSRN, 2011
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2008
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Berlin: Wissenschaftszentrum Berlin für Sozialforschung (WZB), 2008
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2002
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Berlin, 2008
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[S.l.]: SSRN, [2021]
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[S.l.]: SSRN, [2021]
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[S.l.]: SSRN, [2021]
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Bonn: Institute for the Study of Labor (IZA), 2016
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2010