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产业关联是区域经济中各产业部门之间的客观联系,两两部门之间的关联关系是研究产业关联的基础。人们常常使用消耗(或分配)系数描述两个部门之间的关联,但这些系数的研究视角是需求(或供给)部门,而不是整个系统。为了研究两个部门之间的关联对区域经济总产出的影响,提出了产业关联修正影响系数的概念,并在虚拟消去法的基础上推导出其计算方法。计算实例表明,产业关联修正影响系数能够从对区域经济总产出影响的视角,定量描述两个部门之间的关联关系。它反映了部门之间的供求,与消耗(或分配)系数有一定的相关性,同时又体现了需求(或供给)部门的规模。分析比较这类系数,从中挖掘深层次信息,对进一步研究结构相关的问题有一定的理论与实践意义。
Industrial linkages are the objective linkages among various industrial sectors in a regional economy. The linkages between two or more sectors are the basis for the study of industrial linkages. Consumption (or distribution) coefficients are often used to describe the relationship between two departments, but the research perspective of these factors is the demand (or supply) department, rather than the entire system. In order to study the impact of the relationship between the two departments on the total output of regional economy, the concept of the coefficient of influence of industrial association correction was proposed and the calculation method was deduced based on the virtual elimination method. The calculation example shows that the influence coefficient of industrial association correction can quantitatively describe the relationship between the two sectors from the perspective of the impact on the total output of regional economy. It reflects the supply and demand between sectors, and consumption (or distribution) coefficient has some relevance, but also reflects the size of the demand (or supply) sector. Analyzing and comparing these kinds of coefficients and mining deep-level information from them have certain theoretical and practical significance for further studying the structural-related issues.