产业结构变动中需求因素的影响——基于信息熵方法的理论与应用

Influences of Demand Factors on the Industrial Structural Changes——Theory and Application based on Information Entropy

产业结构调整是经济结构调整的重中之重，产业结构的变动既取决于投入结构的变化，也受到需求因素的影响。采用信息熵指数，利用标准产业结构和中国产业结构的经验数据，分析了产业结构变动的熵特征；基于信息熵的分解方法，通过建立产业结构变动的需求因素影响模型，研究了产业结构变动中最终消费、资本形成、货物和服务净出口的比例及它们的产业分布对产业结构变动的影响；最后，利用中国1990~2005年间的投入产出数据进行应用分析，给出我国需求因素调控的政策建议。

Industrial structural adjustment is the core in economic structural adjustment, and its changes are not only influenced by input structures and also demand factors. Firstly, the entropy features of indus- trial structural changes are studied by the applying information entropy index and empirical data from standard structures and Chinese industrial structures. Secondly, the influencing model of demand factors in industrial structural changes is established based on entropy decomposition principle, and the effects of three big demand proportions, including final consumption, capital formations, goods and services net ex- ports and their industrial distributions to the industrial structural changes are analyzed. Finally, the empir- ical analysis of demand changes and industrial structural transformations are carried out using Chinese in- put and output data from 1990 to 2005. The policies and suggestions of the demand factors adjustments are presented.