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[S.l.]: SSRN, [2019]
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[S.l.]: SSRN, [2017]
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[S.l.]: SSRN, [2014]
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[S.l.]: SSRN, [2014]
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[S.l.]: SSRN, [2012]
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Bonn, Germany: IZA - Institute of Labor Economics, February 2019
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[S.l.]: SSRN, [2019]
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Bonn: Institute of Labor Economics (IZA), 2019
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[S.l.]: SSRN, [2010]
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[S.l.]: SSRN, 2008
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[S.l.]: SSRN, [2007]
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Cambridge, Mass: National Bureau of Economic Research, May 2008
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[S.l.]: SSRN, [2011]
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2022
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Bonn: Institute of Labor Economics (IZA), 2022
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[S.l.]: SSRN, [2022]
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[S.l.]: SSRN, 2022
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Bonn: Institute for the Study of Labor (IZA), 2014
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Bonn: Institute for the Study of Labor (IZA), 2013
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Bonn: Institute for the Study of Labor (IZA), 2012