数字经济、企业家精神与城市全要素生产率OACHSSCD

Based on panel data from 216 prefecture-level and above cities across China from 2011 to 2024,this study ex-plores the impact effects and mechanisms of the digital economy on urban total factor productivity(TFP)from the perspective of new quality productivity.The findings reveal that the digital economy fosters the formation of urban new-quality productivity,with a significant increase in TFP as a core indicator.Research has found that the digital economy significantly enhances urban TFP.Mechanism analysis indicates that the digital economy indirectly enhances urban TFP by stimulating entrepreneurs'innovative spirit and entrepreneurial spirit,with the former mechanism exerting a stronger effect,particularly through exploitative innovation.Non-linear analysis shows that the empowering effect of the digital economy on urban TFP exhibits a single-threshold effect with entrepreneurs'innovative spirit as the threshold,characterized by diminishing marginal returns.Notably,when exploratory innova-tion surpasses the threshold,the empowering effect of the digital economy displays increasing marginal returns;conversely,ex-ploitative innovation shows diminishing marginal returns,and the current level of exploitative innovation in most cities has already crossed the"critical threshold".Heterogeneity analysis further demonstrates that the digital economy's promoting effect on urban TFP is more pronounced in southern regions and non-resource-based cities.This study provides empirical evidence for orderly high-quality development of the digital economy,stimulating and cultivating entrepreneurial spirit,clarifying optimization pathways for"anti-overwork",improving urban TFP,and fostering the formation of urban new-quality productivity.