本文基于2000-2013年的省级面板数据,设置三种空间权重矩阵,运用Lesage and Pace(2009)提出的空间回归偏微分方法,实证检验了我国信息化发展对区域经济增长的空间溢出效应。研究发现,中国省域经济增长存在显著的正向空间相关性,区域经...本文基于2000-2013年的省级面板数据,设置三种空间权重矩阵,运用Lesage and Pace(2009)提出的空间回归偏微分方法,实证检验了我国信息化发展对区域经济增长的空间溢出效应。研究发现,中国省域经济增长存在显著的正向空间相关性,区域经济活动受其他与之相近空间特征地区的影响;三种空间权重下信息化对经济增长的区域内溢出效应显著为正,溢出效应在0.18-0.25之间,但区域间溢出效应并不显著;固定资产投资对经济增长具有直接的促进作用,但影响小于信息化的效应水平;人力资本在促进区域经济增长方面的作用尚未得到应有发挥,潜能需要进一步释放;政府财政支出对区域经济增长的正向间接效应抵消了负向直接效应,因而总效应表现为促进。展开更多
The idea of the gradient method for integrating the dynamical equations of a nonconservative system presented by Vujanovic is transplanted to a Birkhoffian system, which is a new method for the integration of Birkhoff...The idea of the gradient method for integrating the dynamical equations of a nonconservative system presented by Vujanovic is transplanted to a Birkhoffian system, which is a new method for the integration of Birkhoff＇s equations. First, the differential equations of motion of the Birkhoffian system are written out. Secondly, 2n Birkhoff＇s variables are divided into two parts, and assume that a part of the variables is the functions of the remaining part of the variables and time. Thereby, the basic quasi-linear partial differential equations are established. If a complete solution of the basic partial differential equations is sought out, the solution of the problem is given by a set of algebraic equations. Since one can choose n arbitrary Birkhoff＇s variables as the functions of n remains of variables and time in a specific problem, the method has flexibility. The major difficulty of this method lies in finding a complete solution of the basic partial differential equation. Once one finds the complete solution, the motion of the systems can be obtained without doing further integration. Finally, two examples are given to illustrate the application of the results.展开更多
文摘本文基于2000-2013年的省级面板数据,设置三种空间权重矩阵,运用Lesage and Pace(2009)提出的空间回归偏微分方法,实证检验了我国信息化发展对区域经济增长的空间溢出效应。研究发现,中国省域经济增长存在显著的正向空间相关性,区域经济活动受其他与之相近空间特征地区的影响;三种空间权重下信息化对经济增长的区域内溢出效应显著为正,溢出效应在0.18-0.25之间,但区域间溢出效应并不显著;固定资产投资对经济增长具有直接的促进作用,但影响小于信息化的效应水平;人力资本在促进区域经济增长方面的作用尚未得到应有发挥,潜能需要进一步释放;政府财政支出对区域经济增长的正向间接效应抵消了负向直接效应,因而总效应表现为促进。
基金The National Natural Science Foundation of China(No.10972151)
文摘The idea of the gradient method for integrating the dynamical equations of a nonconservative system presented by Vujanovic is transplanted to a Birkhoffian system, which is a new method for the integration of Birkhoff＇s equations. First, the differential equations of motion of the Birkhoffian system are written out. Secondly, 2n Birkhoff＇s variables are divided into two parts, and assume that a part of the variables is the functions of the remaining part of the variables and time. Thereby, the basic quasi-linear partial differential equations are established. If a complete solution of the basic partial differential equations is sought out, the solution of the problem is given by a set of algebraic equations. Since one can choose n arbitrary Birkhoff＇s variables as the functions of n remains of variables and time in a specific problem, the method has flexibility. The major difficulty of this method lies in finding a complete solution of the basic partial differential equation. Once one finds the complete solution, the motion of the systems can be obtained without doing further integration. Finally, two examples are given to illustrate the application of the results.
