Abstract: Taking 30 counties of Wanjiang City from 2007 to 2015, this paper mainly analyses their economic development differences and driving forces by means of Theil coefficient and the multiple linear regression model and so forth. The results show that the county economic development imbalance generally existing in Wanjiang City is increasingly sharpening. Meanwhile, the results of regression analysis indicate that the key factors behind county economic development differences are the proportion of secondary and tertiary industrial added value in GDP, the level of urbanization and the loans of financial institutions, thus relevant measures to promote the county balance are put forward.

Key words: county economy, Theil coefficient, driving factors, Wanjiang City belt

摘要： 以皖江城市带30个县为研究案例，利用泰尔系数、多元线性回归模型等方法，分析2007—2015年皖江城市带30个县的经济发展差异及驱动因子，结果显示皖江城市带地区县域经济发展不均衡，且存在经济发展差异性扩大的趋势。回归分析的结果表明，导致县域经济发展差异较为关键的因子有第二三产业增加值占GDP比重、城镇化水平以及年末金融机构各项贷款余额，提出推动县域经济均衡发展的相关措施。

关键词: 县域经济, 泰尔系数, 驱动因子, 皖江城市带