First Author:   Byung Cho Kim Pamplin College of Business, Virginia Tech bck@vt.edu   1007 Pamplin Hall (0235), Pamplin College of Business, Virginia Tech Blacksburg, 24061, U.S.A.   540-231-4593(Phone) 540-231-4593(Fax) Second Author: Dongryul Lee Department of Economics, Virginia Tech lee78@vt.edu   Department of Economics, Department of Economics, Virginia Tech Blacksburg, 24061, U.S.A.   540-231-5764(Phone)