First Author:   Chiung-I Hwang Department of Economics, San Jose State University jessicahw@gmail.com   Department of Economics, San Jose State University, One Washington Square San Jose, 95192-0114, USA   408-627-2099(Phone) 408-627-2099(Fax) Second Author: Yeung-Nan Shieh Department of Economics, San Jose State University ynshieh@yahoo.com   Department of Economics, San Jose State University, One Washington Square San Jose, 95192-0114, USA   408-924-5413(Phone) 408-924-5406(Fax)