“生态锦标赛”有利于绿色全要素生产率提升吗?——来自文明城市评选的经验证据

Is the “Ecological Championship” Conducive to the Improvement of Green Total Factor Productivity? : Empirical Evidence from the Selection of Civilized City

“文明城市”评选是“生态锦标赛”的重要形式,是促进生态文明建设的重要举措,对推动城市高质量发展具有重要意义。基于DDF-Global Malmquist-Luenberger指数分析方法,测度2003-2019年中国243个城市的绿色全要素生产率,借助“文明城市”评选这一准自然实验,通过渐进双重差分模型探究“文明城市”评选对绿色全要素生产率的影响,并进一步分析其影响路径。研究结果表明:“文明城市”评选有利于提高城市的绿色全要素生产率,研究结论在经过一系列稳健性检验后依然可靠。城市规模越大,城市等级越高,城市教育资源越丰富,“文明城市”评选的驱动效应就越明显。相较于资源型城市,“文明城市”评选的驱动效应对非资源型城市更加明显。创新效应、结构效应与倒逼效应是“文明城市”评选驱动绿色全要素生产率的主要途径。

The selection of “civilized city” is an important form of “ecological championship”, which is an important measure to promote the construction of ecological civilization, and it is of great significance to promote the high-quality development of cities. Based on the DDF-Global Malmquist-Luenberger index analysis method, this paper measures the green total factor productivity of 243 cities in China from 2003 to 2019, and uses the “civilized city” selection, a quasi-natural experiment, to explore the impact of selection on green total factor productivity, and further analysis of its impact path through the heterogeneous timing DID model. The research results show that the selection of “civilized city” is conducive to improving the green total factor productivity of the city. The research conclusions are still robust and reliable after a series of tests. The larger the city scale, the higher the city level, the richer the non-resource-based city and the urban educational resources, the more obvious the driving effect of the selection of “civilized city”. Innovation effect, structural effect and reversal effect are the main ways for the selection of “civilized city” to drive green total factor productivity.