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Oslo: Statistics Norway, Research Department, 1994
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Oslo: University of Oslo, Department of Economics, 2005
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Budapest: AKI Institute of Agricultural Economics, 2014
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Mannheim: Zentrum für Europäische Wirtschaftsforschung (ZEW), 2010
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Oslo: Statistics Norway, Research Dept., 2006
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Milton Keynes: The Open University, Economics Department, 2007
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Ithaca, NY: Cornell University, Charles H. Dyson School of Applied Economics and Management, 1978
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2016
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Trans Tech Publications, Ltd., 2011
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Silesian University of Technology, 2023
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MDPI AG, 2021
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Elsevier BV, 2001
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SAGE Publications, 1996
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IDEALKENT, 2021