中文摘要：

随着中国经济步入以中高速、优结构、新动力为主要特征的新常态,提高经济增长质量成为经济发展中迫切需要解决的重要问题。采用主成分分析法测算中国30个省（市、自治区）1998-2012年间经济增长质量指数值,运用半参数个体时间异质模型对各地区经济增长质量的差距进行检验,结果表明：中国30个省（市、自治区）的经济增长质量水平在1998-2012年间表现出收敛的趋势,且各地区经济增长质量差距的水平收敛假设被拒绝,地区经济增长质量的增长率随着时间收敛。分地区再检验结果显示,中部地区和西部地区两个分组的经济增长质量差距呈条件收敛趋势,而东部地区的经济增长质量差距呈发散趋势。进一步,采用聚类方法检验发现30个省（市、自治区）的经济增长质量水平存在一个趋同俱乐部。

英文摘要：

Since such characteristics as high-middle speed, optimal structure, new power etc.,have become the new normality in the development of China＇ s economic reform, to improve the quantity of economic growth has become an important problem to be solved urgently during the economic development. This paper adopts the method of principal component analysis to measure the index value of economic growth quality of China＇ s 30 provinces（municipalities and autonomous regions） from 1998 to 2012. And it employs the semi-parametric model for heterogeneity over time and across individuals to check the regional disparities of the quality of economic growth. The result shows that there is a tendency of convergence of China＇ s economic growth quality from 1998 to2012; the horizontal convergence hypothesis for the regional quality disparities in economic growth is rejected, and the growth rate converges with the time. The result of the regional re-checking shows that the quality disparity of economic growth of the two groups of the central region and the western region presents a tendency of conditional convergence, while that of the eastern region presents a tendency of divergency. It is also found through further check with the clustering method that the level of economic growth quality of all the 30 provinces（municipalities and autonomous regions） has a convergence club.