MUNICIPAL DISPARITY OF INNOVITION WITHIN YANGTZE DELTA REGION AND CONSTRUCTION OF A RANK SCALE SYSTEM
利用2003-2008年专利数据，通过变异系数、基尼系数等指标分析长三角16市创新差异，发现差距缩小，并运用等级规模分布理论揭示创新活动分布特征。
From the perspective of economical geography,disparity of innovation power among 16 cities of Yangtze Delta Region was examined using the data of patent applications accepted and granted from 2003 to 2008.Three indicators,including coefficient of variation,Gini coefficient,and Herfindal Index,were calculated to rank the cities along the temporal dimension.The results showed that the difference among the cities had been shrinking in terms of these two patent variables.The primacy index revealed that the gap of innovation between the top city and the second one had been narrowing from year to year.In addition,the theory of rank-scale distribution was applied to analyze the activity scale of innovation in the region.The results indicated that the scale of innovation of Yangtze Delta Region was evenly and discretely distributed.In the end,some advices were provided for further bridging the gap of innovation within the region.