First Author:   Yang-Ming Chang Kansas State University ymchang@ksu.edu   Department of Economics, Kansas State University, 319 Waters Hall Manhattan, 66506-4001, USA   (785) 532-4573(Phone) (785) 532-4573(Fax) Second Author: Bhavneet Walia Kansas State University bhavneet@ksu.edu   Department of Economics, Kansas State University Manhattan, 88506-4001, USA   (785) 317-4181(Phone) (785) 532-6919(Fax)