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ralph lauren polo


First Author:
 
Toru Kikuchi
Kobe University
kikuchi@econ.kobe-u.ac.jp
 
 
 
 
http://www.econ.kobe-u.ac.jp/~kikuchi/research.html

Second Author:

Dao-Zhi Zeng
Kagawa University
zeng@ec.kagawa-u.ac.jp