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

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...

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