产业结构视角下地方政府竞争对绿色经济效率的影响

在理论机理分析的基础上,基于2004—2016年中国249个地级及以上城市的面板数据,采用系统广义矩估计方法和中介效应模型,实证分析了地方政府竞争对绿色经济效率的影响。结论如下:整体来看,地方政府绝对竞争与相对竞争不仅可以直接抑制绿色经济效率的提升,还会通过引致产业结构的工业化抑制绿色经济效率的提升,就总效应而言,地方政府绝对竞争与相对竞争仍抑制了绿色经济效率的提升,稳健性检验支持以上观点;分地区、城市规模看,东部、中部、西部和中等城市、小城市地方政府绝对竞争与相对竞争均能通过引致产业结构的工业化来抑制绿色经济效率的提升,大城市地方政府绝对竞争与相对竞争未能通过引致产业结构的工业化来抑制绿色经济效率的提升。

The Application of the Urban Repair Theory in the Reconstruction of Old Parks in Shanghai

To cope with the current trends of urban transformation and solve the problem of "urban diseases", China''s Ministry of Housing and Urban-Rural Development has put forward the strategy of "Ecological Restoration and Urban Renovation". The old urban space has become the important place to practice the theory. As time goes on, old parks have experienced different levels of aging. The application of the city repair theory in the renovation of old parks is very necessary. Through studying the reconstruction of 3 old parks in Shanghai, including Kunshan Park, Liangcheng Park, and Century Avenue Garden, the main problems that the old park facing at present are outdated infrastructure, lack of management of green space, inadequate functional layout to meet the needs of modern life, unreasonable road layout and poor condition, poor space openness, and the loss of cultural and spiritual connotation. In view of the above problems, this paper summarizes various transformation measures, including repairing infrastructure, improving green environment, improving road structure, integrating functional space, enhancing openness, and enriching spiritual and cultural connotation by using the theory of urban repair. Finally, the paper summarizes and reflects on the application of the urban repair theory in the reconstruction of Shanghai old parks.