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First Author:
 
Xuelong Wang
Department of Economics, Hokkaido University
wangxuelong@ec.hokudai.ac.jp
 
Room405,Building5,District1,Kita20Nishi6,KitaKU
Sapporo, 0010020, Japan
 
81-090-2810-5639(Phone)
81-090-2810-5639(Fax)