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With the rapid growth of the national investment in sewage treatment industry in China, more and more sewage treatment plants have been set up. Therefore, investment efficiency of the sewage treatment plants is of great significance. Since the traditional CCR model does not take into account "slack" of input elements, and it's unable to solve the problem of ranking efficient DMUs, this paper...
This study uses data envelopment analysis (DEA) to evaluate the operational efficiency of 50 Chinese open-end funds, and makes a comparative analysis of selected fundspsila operational efficiency according to the fund size, investment type and investment style from the perspective of the overall and division. The result showed that bond funds had the maximum and stable average efficiency, hybrid funds...
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