【摘要】 扩大内需和提升绿色经济效率是未来中国实现经济高质量发展的必然选择。以2009—2021年269个地级市面板数据构建交叠双重差分模型，通过国家信息消费试点政策考察新型消费对绿色经济效率的影响。研究发现，新型消费能显著提升绿色经济效率，该结论在经过一系列稳健性检验后依然成立。异质性分析发现，在东部地区以及规模较大、高经济基础、高信息基础设施、低收入差距城市中，新型消费对绿色经济效率的促进效果更优。传导机制分析发现，新型消费通过驱动产业结构升级、促进绿色创新、吸引外资流入和推动居民生活方式向线上转型来提升绿色经济效率。调节效应分析发现，新型消费对绿色经济效率的积极影响会受到人力资本与金融发展的正向调节作用，同时也会受到要素市场扭曲的负向调节作用。拓展性分析发现，新型消费对邻近城市的绿色经济效率产生“虹吸效应”。为此，应重视高质量人才培养，优化金融体系建设，缓解要素市场扭曲行为，以充分释放新型消费对绿色经济效率的提升作用，并总结政策试点经验，避免“虹吸效应”的产生。更多还原

【Abstract】 Expanding domestic demand and improving the efficiency of the green economy are necessary choices for China to achieve high-quality economic development. This study employs an overlapping difference-in-differences model using panel data from 269 prefecture-level cities from 2009 to 2021 to examine the impact of new consumption on green economic efficiency through the national information-consumption pilot policy. The study finds that new consumption can significantly improve the efficiency of the green economy, and this conclusion holds after a series of robustness tests. The heterogeneity analysis shows that in the eastern regions, large cities with high levels of economic and information infrastructure, and cities with low levels of income inequality, new consumption has a greater promotional effect on green economic efficiency. Analysis of the transmission mechanism reveals that new consumption enhances the efficiency of the green economy by driving the upgrading of industrial structures, promoting green innovation, attracting foreign investment inflows, and driving the online transformation of residents’ lifestyles. The analysis of regulatory effects shows that the positive impact of new consumption on green economic efficiency is positively regulated by human capital and financial development and negatively regulated by factor market distortions. The expansion analysis shows that new consumption has a “siphon effect” on the green economic efficiency of neighboring cities. We should thus focus on cultivating high-quality talents, constructing the financial system, and alleviating the distortion of factor markets to optimize the positive impact of new consumption on the efficiency of the green economy and summarize the experience of policy pilot projects to avoid the occurrence of “siphon effects”.更多还原