Affiliation: | aDepartment of Transportation and Communication Management Science, National Cheng Kung University, 1, University Rd., Tainan 701, Taiwan, ROC;bInstitute of International Management, National Cheng Kung University, 1, University Rd., Tainan 701, Taiwan, ROC;cDepartment of Logistics Management, National Kaohsiung First University of Science and Technology, 2, Zhuoyue Rd., Nanzi District 811, Kaohsiung City, Taiwan, ROC |