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Analyzing Efficiency in the Seoul's Urban Bus Industry Using Data Envelopment Analysis  

오미영 (서울시정개발연구원 연구원)
김성수 (서울대학교 환경대학원)
김민정 (서울대학교 환경대학원)
Publication Information
Journal of Korean Society of Transportation / v.20, no.2, 2002 , pp. 59-68 More about this Journal
Abstract
Using 1996 annual observations for 69 bus firms in Seoul, this paper measures firm-level efficiency with data envelopment analysis(DEA) and identifies firm characteristics indicative of differential efficiency in these firms with Tobit regression analysis. The paper then conceptualizes that these firms produce two kinds of output(city/seat bus kilometers or city/seat bus Passengers) using four inputs (labor vehicle, fuel and maintenance). The findings show that, on an average, these firms have only a little input saving potential of 0.9 percent, while not a little output increasing potential of 12.9 percent. On the other hand, it is discovered that these firms operate more efficiently with a lower ratio of maintenance employees to total employees. Furthermore, it appears that both the ratio of seat buses to total buses and average speeds positively affect efficiency in this industry.
Keywords
DEA;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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