Does intellectual property (IP) strategy improve the total factor productivity of enterprises (TFP)? This paper uses 21,930 enterprise-year observations of China’s A-share listed enterprises from 2010–2020, adopts a multi-period difference-in-differences model, and constructs a quasi-natural experiment on the impacts of intellectual property model cities (IPMC) on TFP. The findings are as follows: (1) IPMC significantly improves TFP. (2) It has lag effects and long-term effects. (3) The promotion effect is stronger for state-owned enterprises and enterprises implementing organizational political strategies. (4) The close government-business relationship and clean government-business relationship play positive regulating roles in IPMC on TFP. (5) IPMC promotes TFP by increasing urban fiscal expenditure on science and technology and enterprise technological innovation. This study enriches the theory and evidence of policy effect assessment for IPMC at the enterprise level, and provides policy inspiration for the promotion of IPMC and TFP, to help China achieve high-quality economic development.

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From the perspective of entrepreneurs’ perception of a business environment (EPBE), this study explores the mechanism of EPBE on enterprise innovation with regional stereotypes. Data from 358 entrepreneur questionnaires in China were tested by using a structural equation model. The results showed that the two dimensions of EPBE—entrepreneurs’ perception of the government environment (EPGE) and entrepreneurs’ perception of the factor environment (EPFE)—are significantly positively correlated with enterprise innovation, willingness–ability fit (WAF) plays a mediating role between EPBE and enterprise innovation, a warm impression has a greater positive moderating effect on the relationship between EPGE and enterprise innovation, and a competence impression has a greater positive moderating effect on the relationship between EPFE and enterprise innovation. These research findings expand the ideas of research on business environment optimization and enterprise innovation and provide theoretical references for stimulating enterprise innovation.