| Summary: | 碩士 === 佛光人文社會學院 === 經濟學研究所 === 93 === The competition of the mobile phone communications industry has recently been bruising. It owns the characteristics of large capitals, longer reward and natural monopoly.
Based on these characteristics; this study has utilize the method of DEA and Malmquist productivity index to measure and detect the change of operational efficiency, for both individual firm and the whole industry.
Major conclusions of the empirical research are as follows:
Firstly, concerning the whole industry, lower efficiency of the industry is mostly caused by scale inefficiency while applying the sense of TFPC index. The changes of TFPC in mobile phone communications industry is mostly accounted by the efficiency changes.
Secondly, the most efficient of all firms is KG telecommunications co., with Chunghwa telecommunications co. in second, and Taiwan Mobile telecommunications co. in third. Lower scale inefficiency is the reason that induces technological inefficiency of Chunghwa telecommunications co., Taiwan Mobile telecommunications co., Mobitai communications co., and Trans Asia telecommunications co. Pure technological inefficiency is the reason for KG telecommunications co. and Far Eastone telecommunications co.’s technological inefficiency.
Last, in the case of slack variable analysis, in order to improve the technological efficiency, the firms need to reduce the factor cost of input.
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