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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/31934

Title: DEA-based integrated relationship of returns to scale – an application to road maintenance in Taiwan
Authors: Gang Lee;Ming-Miin Yu;Lung-Chuang Wang
Contributors: NTOU:Department of Transportation Science
國立臺灣海洋大學:運輸科學系
Keywords: integrated relationship of returns to scale;data envelopment analysis;slack-based measure;highway maintenance
Date: 2012
Issue Date: 2012-05-23T01:10:07Z
Publisher: Journal of Civil Engineering and Management
Abstract: Abstract:An Integrated Relationship of Returns to Scale (IRRS) associated with multiple-stage Data Envelopment Analysis (DEA) is proposed for identifying the returns to scale (RTS) among decision-making units (DMUs) appropriately and accurately. The validity and feasibility of the proposed method is tested by using 31 case studies on highway maintenance and construction offices based on the data provided by the Directorate General of Highways (Taiwan). The results show that the multi-stage DEA method with IRRS is more useful than the traditional single-stage DEA for evaluating the status of RTS for each DMU. Among the 31 units evaluated, 14 units are categorized as having increasing returns to scale, 4 have decreasing returns to scale, and no unit has constant returns to scale; the returns for the remaining 13 units cannot be determined.
Relation: 18(5), pp.709-723
URI: http://ntour.ntou.edu.tw/handle/987654321/31934
Appears in Collections:[運輸科學系] 期刊論文

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