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First Author:
 
Shigeyuki Hamori
Kobe University
hamori@econ.kobe-u.ac.jp
 
 
 
 

Second Author:

Go Tamakoshi
Kobe University
tamakosh@stu.kobe-u.ac.jp
 
 
 
 

Third Author:

Yuki Toyoshima
Kobe University
yuki.toyoshima@stu.kobe-u.ac.jp