Undesirable factors in integer-valued DEA : evaluating the operational efficiencies of city bus systems considering safety records

• Main Authors: Du, Juan, Huo, Jiazhen, Zhu, Joe, Chen, Chien-Ming
• Other Authors: Nanyang Business School
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/97797; http://hdl.handle.net/10220/13204
• Institution: Nanyang Technological University

In conventional data envelopment analysis (DEA) methods, all inputs and outputs are assumed to be continuous. However, in many practical situations, firms may generate both desirable and undesirable outputs, and some of which may only take integer values (e.g., the number of traffic accidents and de...