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ralph lauren polo


First Author:
 
Chaowen Yu
Department of Economics, Keio University
yu-chaowen@keio.jp
 
 
 
 

Second Author:

Yuhki Hosoya
Department of Economics, Kanto-Gakuin University
hosoya@kanto-gakuin.ac.jp
 
 
 
 

Third Author:

Toru Maruyama
Department of Economics, Keio University
maruyama@econ.keio.ac.jp