?:authorAffiliation
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[\'Department of Economics, Massachusetts Institute of Technology, Cambridge, MA 02142.\', \'Center for Statistics and Data Science, Massachusetts Institute of Technology, Cambridge, MA 02139.\', \'Vancouver School of Economics, University of British Columbia, Vancouver, BC V6T1L4, Canada hkasahar@mail.ubc.ca.\', \'Vancouver School of Economics, University of British Columbia, Vancouver, BC V6T1L4, Canada.\']
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