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First Author:
 
Noritaka Kudoh
Hokkaido University
kudoh@econ.hokudai.ac.jp
 
Department of Economics, Hokkaido University, Kita 9 Nishi 7, Kita-ku
Sapporo, 060-0809, Japan
 
 
 
http://www.econ.hokudai.ac.jp/~kudoh/

Second Author:

Hong Thang Nguyen
Hokkaido University
thangnh@econ.hokudai.ac.jp
 
Department of Economics, Hokkaido University, Kita 9 Nishi 7, Kita-ku
Sapporo, 060-0809, Japan