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机构:
Inst Labor Econ, D-53113 Bonn, Germany
Univ Laval, Dept Econ, Quebec City, PQ G1V 0A6, Canada
Univ Laval, Ctr Rech Risques Enjeux Econ & Polit Publ CRREP, Quebec City, PQ G1V 0A6, Canada
Ctr Interuniv Rech Anal Org CIRANO, Montreal, PQ H3A 2M8, Canada Aix Marseille Univ, Aix Marseille Sch Econ, F-13205 Marseille, France