KANG Jian, Ph.D., Customer Satisfaction Measurement Center, China National Institute of Standardization; research fields: customer asset and customer satisfaction, use of statistical modeling in marketing research. ZHANG Xin, Ph.D., lecturer, College of Management, Tianjin Normal University; research fields: service quality measurement, reverse logistics and operational research. ZHENG Zhao-hong, associate professor, China National Institute of Standardization; research fields: customer asset and customer satisfaction, use of statistical modeling in marketing research.