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以港航业和区域经济为研究对象,引入虚拟决策单元替代传统模型中的评价决策单元,构建改进的DEA数据包络分析模型.改进的DEA模型较传统的DEA模型更为实用和有效,不仅考虑到原始数据的准确性误差以及各个指标重要度的不同,也可以对决策单元的有效性进行排序,具有较大适用性.选取1996—2010年辽宁省港航业和区域经济系统评价指标构成决策单元DMU.评价结果表明,辽宁省港航业与区域经济实现了有效协调,其中2007年区域经济对港航业的推动作用最大.
Taking port and regional economy as the research object, virtual decision-making unit is introduced to replace the evaluation decision-making unit in the traditional model to construct an improved DEA data envelopment analysis model. The improved DEA model is more practical and effective than the traditional DEA model. Taking into account the accuracy of the original data, as well as the accuracy of each index, the validity of the decision-making units can also be ranked, with greater applicability.Selecting the composition of Liaoning Province’s port industry and regional economic system evaluation indicators from 1996 to 2010 Decision-making unit DMU. Evaluation results show that the port and shipping industry in Liaoning Province and the regional economy to achieve an effective coordination, of which the regional economy in 2007 to promote the role of the largest port and shipping industry.