?:authorAffiliation
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[\'Department of Law, Economics and Sociology, Magna Graecia University, Catanzaro, Italy.\', \'RWI Essen, Essen, Germany.\', \'IZA, Bonn, Germany.\', \'Department of Economics and Finance, University of Bari Aldo Moro, Bari, Italy.\', \'Department of Economics, University of Molise, Campobasso, Italy.\']
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