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Munich: CESifo, 2002
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Hamburg, 1999
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Bonn, Germany: IZA - Institute of Labor Economics, August 2023
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Pisa: Scuola Superiore Sant'Anna, Laboratory of Economics and Management (LEM), 2004
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New York, NY: United Nations, Dep. of Economic and Social Affairs, 2011
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Cambridge, Mass: National Bureau of Economic Research, July 2023
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Helsinki: The United Nations University World Institute for Development Economics Research (UNU-WIDER), 2009