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ralph lauren polo


First Author:
 
Noriyuki Yanagawa
Faculty of Economics, University of Tokyo
yanagawa@e.u-tokyo.ac.jp
 
The University of Tokyo,, 7-3-1, Hongo,
Bunkyo-ku,, 113-0033, Japan
 
+81-3-5841-5606(Phone)
+81-3-5841-5606(Fax)

Second Author:

Ryoko Oki
Graduate School of Economics, University of Tokyo
oki.ryoko@gmail.com
 
The University of Tokyo,, 7-3-1, Hongo,
Bunkyo-ku,, 113-0033, Japan