城乡融合发展提升了农业全要素生产率吗?——基于长三角地区的实证检验

Does Urban-Rural Integration Improve Agricultural Total Factor Productivity?An Empirical Test from the Yangtze River Delta

基于2010—2019年长三角地区的面板数据,采用DEA-Malmquist指数法和熵值法测量各城市农业全要素生产率和城乡融合水平,通过构建面板门槛模型,研究长三角地区城乡融合对农业全要素生产率的门槛特征。结果表明:第一,农业全要素生产率和城乡融合水平均呈现波动上升的趋势;第二,农业全要素生产率与城乡融合之间存在单一门槛;第三,门槛效应的区域差异明显。未来应加大研发投入,鼓励企业创新,推动技术进步;坚持市场在资源配置中的决定性作用,更好发挥政府作用,提高劳动力、资本、土地等要素的资源配置效率,加快要素的市场化改革,着力破除城乡之间的要素流动障碍;加强上海、苏州、杭州、南京等地的中心城市功能,推进长三角示范区建设,优化产业布局和空间发展格局,提高区域协调发展,加强省市间互动,引导技术、人才等要素在省市之间双向流动。

Based on the panel data of the Yangtze River Delta region from 2010 to 2019,this paper uses DEA-Malmquist index method and entropy method to measure agricultural total factor productivity and urban-rural integration level of each city,and discusses the threshold effect of urban-rural integration on agricultural total factor productivity in the Yangtze River Delta region by constructing panel threshold model.The results show that:First,agricultural total factor productivity and urban-rural integration both show an upward trend of fluctuation.Second,there is a single threshold effect between agricultural total factor productivity and urban-rural integration.Third,the regional difference of threshold effect is obvious.Therefore,it is sensible to speed up technological investment and encourage corporate innovation and technological progress.Meanwhile,we should ensure the decisive role of the market in resource allocation,better leverage the role of the government in order to make resource allocation of factors such as labor,capital and land more efficient,speed up market-oriented reform of factors of production,and strive to remove barriers to the flow of factors of production between urban and rural areas.Moreover,we are supposed to strengthen the functions of central cities,including Shanghai,Suzhou,Hangzhou and Nanjing,promote the construction of demonstration zones in the Yangtze River Delta region and optimize the industrial layout and spatial development pattern.In addition,it is necessary to improve the coordinated development of regions and strengthen the interaction and the two-way flow of technology,talent and other factors among provinces and cities.