Spatial Differentiation of Input-Output Efficiency of R&D Resources in Case of Yangtze River Delta Urban Agglomeration
研究了长三角城市群研发资源投入产出效率，发现效率普遍偏低但呈上升趋势，江苏高于上海和浙江，空间差异在缩小。
Yangtze River Delta urban agglomerations is the most important urban agglomeration of Yangtze River Economic support or even in China. From the perspective of input- output efficiency, this article constructs evaluation index system of RD resources, uses the CRS and VRS models and Malmquist index method, measures RD resources input- output efficiency, change trend and the characteristics of spatial differentiation. The results show that RD resources input-output efficiency of the Yangtze River Delta Urban Agglomeration is generally low, but is on the rising.Further more, this paper choose four years as the example, and its RD resources input- output efficiency was 0.591,0.622, 0.669 and 0.591, which are all less than 80% of optimal efficiency; RD resources input- output efficiency of Jiangsu is higher than Shanghai and Zhejiang; the degree of RD resources input-output efficiency is narrowing, but the spatial pattern is changing; all kinds of changing index shows a trend of rise, and the total factor productivity is changing significantly.