| Summary: | 碩士 === 國立臺北大學 === 自然資源與環境管理研究所在職專班 === 101 === The number of motor vehicles is increasing in Taiwan, and motor vehicle is composed of many different materials. End-of-life vehicles will cause serious environmental problems if not properly handled. EPA gives subsidies for end-of-life vehicles be recycled, dismantled and vehicle shell be shredded, and grading subsidizes the shredding plants with recycling rates. However, the shredding plants always can get the highest level subsidies, so this system is no discrimination. Therefore, the research evaluate performance of five shredding plants of end-of-life vehicles in Taiwan by data envelopment analysis, and hope the result can be used for subsidizing and grading management in further. The research evaluate period is during 2009 to 2012. The input items are including “Number of Violation,” “Electricity,” and “Shell Input,” and the output items are including “Income,” “Number of Exceptions,” and “ASR Output”.
The research result shows that plant C has the best Technical Efficiency and Pure Technical Efficiency, and plant B has the best Scale Efficiency. In addition , global economic is downturn in 2009, so efficiency of all factories are generally poor. By the slack variable analysis, the variable most in need of improvement is “Number of Violation,” and other suggestions to improve are including “Electricity” and “ASR Output”. In the sensitivity analysis, “Shell Input” of input items and “Income” of output items affect the efficiency of the industry the most serious, and the two variables advantage plant D and E, too. In order to improve the status of industrial efficiency, shredding plants can improve performance of equipment, and EPA can improve the grading management and subsidizing regulations.
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