| The Theory of Regional Gini Index proposed by Krugman is used to measure the agglomeration level of industrial localization, but when applied to data of groups which has great disparity, the Lorenz curve based on the data jumps around the line of 45 degree in the square from cellar to rafter, and then the Regional Gini Index is possible to be negative and invalid. In this article, a new model is put forward to solve this problem and used to measure the agglomeration level of high-technology industry in China from 1995 to 2005. Many valuable conclusion drawn from these positive studies, firstly, the level of agglomeration of high-tech industry in China is boosted remarkably. Secondly, the five subdivided industries of high-tech industry have big difference both in the agglomeration level and alteration trend from 1995 to 2005. And to reflect the effect of agglomeration, this study adopts theory of cointegration in econometrics to test the correlation of agglomeration level and some indices of economic benefit. And then, use a classical model to analyze the agglomeration effect of the three main high-tech agglomeration regions in China, which include The Pearl River Delta, the Yangtze River Delta and Beijing, Tianjin, Hebei region. And two conclusions drawn from these data analysis, firstly, the agglomeration level of high-tech industry in China has positive correlativity with labor productivity and fixed assets contribution factor. Secondly, the Pearl River Delta and the Yangtze River Delta had obvious agglomeration effect in last elever years, meanwhile Beijing, Tianjin, Hebei region didn't. |
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