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Bonn: ZEI, 2001
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Bonn: Rheinische Friedrich-Wilhelms-Universität Bonn, Zentrum für Europäische Integrationsforschung (ZEI), 2001
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New Haven, Connecticut: Cowles Foundation for Research in Economics, Yale University, June 18, 2019
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Louvain-la-Neuve: CORE, 2008
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Munich, Germany: CESifo, Center for Economic Studies & Ifo Institute, April 2021
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Elsevier BV, 2005
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Springer Science and Business Media LLC, 2004
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Elsevier BV, 2005
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Elsevier BV, 2006
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Elsevier BV, 2005
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Elsevier BV, 2006