The Spatial Spillover Effect of Industrial Robot Application on Urban Green Development

基于2000~2021年中国254个城市面板数据，采用包含非期望产出的超效率SBM模型测度了各城市绿色经济效率后，运用空间杜宾模型探究了工业机器人应用对城市绿色经济效率的空间溢出效应。研究发现：(1) 城市绿色经济效率具有显著的正向空间溢出效应，工业机器人应用显著提升城市绿色经济效率。这一结论得到了稳健性检验的支持。(2) 本市工业机器人应用对东中西部城市绿色经济效率具有显著正向影响，邻近城市工业机器人应用对东西部城市绿色经济效率具有显著正向影响，对中部城市绿色经济效率具有显著负向影响。以上结论为推进城市高质量绿色发展提供了政策启示。Based on the panel data of 254 Chinese cities from 2000 to 2021, this paper measures the green economic efficiency of each city using the super-efficiency SBM model with non-desired outputs, and then explores the spatial spillover effect of industrial robot application on urban green economic efficiency by using the spatial Durbin model. The research findings are as follows: (1) Urban green economic efficiency has a significant positive spatial spillover effect, and the application of industrial robots significantly improves urban green economic efficiency. This conclusion is supported by robust tests. (2) The application of industrial robots in the city has a significant positive impact on the green economic efficiency of cities in the eastern, central and western regions. The application of industrial robots in neighboring cities has a significant positive impact on the green economic efficiency of cities in the eastern and western regions, but a significant negative impact on cities in the central region. The above conclusions provide policy implications for promoting high-quality green development in cities.