All Rights Reserved
AccessEcon LLC 2006, 2008.
Powered by MinhViet JSC
ralph lauren polo


First Author:
 
Kazuyasu Sakamoto
Faculty of Economics, Keio University
kazuyasu.sakamoto@z2.keio.jp
 
 
 
 

Second Author:

Isamu Yamamoto
Faculty of Business and Commerce, Keio University
yamamoto@fbc.keio.ac.jp