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中文摘要：
利用空间分析法确定兰新铁路辐射带的辐射范围,以县级行政单元为基本研究单元,综合运用SPSS、GeoDA和ARCGIS分析区域经济差异后发现：在兰新铁路辐射带内,兰州市市辖区、乌鲁木齐市市辖区、嘉峪关市、哈密市、阿拉善左旗的经济发展水平明显比其它地区高,甘肃段内区域经济差异较大,新疆段内区域经济差异较小;区域经济空间集聚特征明显;利用空间计量经济模型分析区域经济差异成因可知,财政收入对经济发展具有明显的负面影响,市场规模、经济结构、工业化、虚拟变量对经济发展具有明显的促进作用,其中虚拟变量与经济发展水平的回归系数最大,说明农村城市化对经济发展的促进作用最大。区域投资水平对经济发展影响不明显。
英文摘要：
In this paper we discussed economic development disparities and the causes by taking administrative county units in the radiation range through spatial analysis of GIS.Based on the ten relative economic indices in Lan-Xin railway radiation belt,the general score of regional economic level was calculated by SPSS,and the disparities of regional economic level in Lan-Xin railway radiation belt were analyzed by means of GIS spatial analysis provided by ARCGIS and GeoDA.Based on studying on the economic development disparities,some conclusions were drawn as follows.In Lan-Xin railway radiation belt,the regional economic level is significantly higher in the municipal of Lanzhou city,the municipal of Urumqi city,Jiayuguan city,Hami city,Alxa Left Banner than others.The economic disparities is larger in Gansu section,it is comparatively smaller in Xinjiang section.Regional economy takes on significantly spatial agglomeration.Based on the spatial econometric models,we analyzed the causes of regional economic disparities,and got some conclusions as follows.Financial receipt has obvious negative impact on economic development.Market scale,economic structure,industrialization,dummy variable,all of them have significantly positive impact on economic development.It is the maximum regression coefficient between dummy variable and economic development level,which shows that rural urbanization has the most positive impact on economic development.Regional investment level has not significant impact on economic development.
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