| 基于超效率模型的上市公司投资价值评价 |
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| 引用本文： | 赵旭. 基于超效率模型的上市公司投资价值评价[J]. 统计与信息论坛, 2007, 22(5): 71-76 |
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| 作者姓名： | 赵旭 |
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| 作者单位： | 南京航空航天大学,经济与管理学院,江苏,南京,210016 |
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| 基金项目： | 中国博士后科学基金;江苏省博士后科学基金 |
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| 摘 要： | DEA方法的C2R模型难以解决相对有效单元进一步识别的问题,而超效率模型通过重新定义生产可能集,可以对决策单元进行充分排序和评价。以上证50指数中的33家上市公司为样本,运用C2R模型和超效率模型对2002-2005年中国上市公司的经营效率进行了实证分析。结果表明,超效率模型确实能够对决策单元进行充分评价和排序,其超效率值大小的顺序即是股票相对投资价值的强弱排序。由此可见,超效率评价模型对投资者的投资决策具有较高的参考价值,在应用上更具有优势。
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| 关 键 词： | DEA C^2R模型 超效率模型 上市公司 投资价值 |
| 文章编号： | 1007-3116(2007)05-0071-06 |
| 修稿时间： | 2007-04-26 |
The Investment Value Evaluation of China''''s Listed Companies Based on Super-efficiency Model |
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| ZHAO Xu. The Investment Value Evaluation of China''''s Listed Companies Based on Super-efficiency Model[J]. Statistics & Information Tribune, 2007, 22(5): 71-76 |
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| Authors: | ZHAO Xu |
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| Affiliation: | ZHAO Xu (School of Economics and Management, Nanjing University of Aeronautics ＆ Astronautics, Nanjing 210016, China) |
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| Abstract: | C2R model of DEA can't identify relative effective units one step further.By redefining production sets,a super-efficiency model may fully evaluate and rank all decision-making units.In this paper,33 Listed Companies are sampled and an empirical study is made of their operational efficiency from 2002 to 2005 by means of C2R model and super-efficiency models.The result shows that super-efficiency models are able to assess and sort all decision-making units,and the super-efficiency indices' sequence represents the relative investment value sequence of the stock.The analysis indicates that the super efficiency model is feasible for investor decision,and has advantages in the use. |
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| Keywords: | DEA |
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