基于信息显著性差异的绿色产业评价指标筛选模型及实证

摘要

According to the generalized green industry connotation , it uses information significance difference a-nalysis and information redundancy analysis to screen the indicators quantitatively , and establishes the green in-dustry evaluation indicators system of Dalian , which include three guidelines , the green production , the green consumption and the green environment .The innovation is that :First, it uses information significance analysis to eliminate the indicators of smaller load factor and weak effect on green industry evaluation results , then uses information redundancy analysis to delete the indicators of information duplication by means of the difference of correlation coefficient size for indicators .It overcomes the disadvantage of current study using correlation analysis to eliminate index of information duplication , and using difference of load factor size to screen the more important indicators.Actually, the higher correlation among indexes is a necessary prerequisite to calculate the load factor . Therefore, it can not analyse correlation to reduce the correlation of indicators before using the load factor to screen.Second, it differentiates and analyses the actual meaning of the experience of the expert and only analy -ses correlation of indexes of information which may be repeated , deletes the weaker indicators of reflecting the guideline information ability in higher correlation coefficient indicators .And it overcomes the disadvantage that it can't only measure the information duplication of indexes by correlation coefficient accurately .The result indi-cates that the final indicator system has used 25.68%of initial indicators to reflect 97.09%of original informa-tion .Moreover , contrasted with the similar indicators system , it analyses the rationality of green industry evalua-tion indicators system of Dalian .%依据广义的绿色产业内涵，通过信息显著性差异与信息冗余分析定量筛选指标，建立了包括绿色生产指标层、绿色生态环境指标层、绿色消费方式指标层的大连市绿色产业评价指标体系。本文的创新与特色一是通过负载系数大小差异进行信息显著性分析，删除负载系数小、对综合评价结果影响弱的指标。克服了现有研究先进行相关分析剔除冗余指标，再利用负载系数大小差异筛选出反映信息显著性大的指标的弊端。事实上，指标间较高的相关性是计算负载系数的必要前提。因此，利用负载系数筛选指标前是不可进行指标的相关分析降低指标间的相关性的。二是通过结合专家知识经验辨析指标的实际含义，仅对反映信息可能重复的指标使用相关分析，剔除同指标层内相关系数较大的两个指标中反映指标层信息能力相对较弱的指标。克服了仅仅通过相关系数不能准确衡量指标间信息重复程度的弊端。研究结果表明，最终建立的指标体系通过25．68％的指标反映了97．09％的原始信息。通过与同类的指标体系进行对比，对大连市绿色产业评价指标体系的合理性做了进一步的分析。