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ralph lauren polo


First Author:
 
Akira Ogawa
JSPS Research Fellow
ogawa@iss.u-tokyo.ac.jp
 
2-23-1 Shin-Shiraoka,
Shiraoka,, 349-0212, Japan
 
 
 

Second Author:

Kazuhiko Kato
Graduate School of Economics, University of Tokyo
fwin9096@mb.infoweb.ne.jp
 
7-3-1 Hongo, Bunkyo-ku
Tokyo, 113-0033, Japan