The Contribution Rate of Thrice Industrial Agglomeration to Industrial Growth in Ningxia - The Calculate Based on Cobb-Douglas Function

摘要

On the basis of Cobb - Douglas function, using location entropy coefficient to construct model, analysis of thrice industrial agglomeration and industrial growth in Ningxia during 2005-2013. The results showed that thrice industrial agglomeration of Ningxia play a positive role in promoting industrial growth, but the contribution rate is very small, are close to zero. Thus conclude that industrial agglomeration is beneficial to industrial growth, the increase of the degree of industrial agglomeration can promote contribution rate to the growth of industry, but the size of the contribution more affected by the degree of industrial concentration in the process of dynamic change, not the cluster scale of a one or a few years.