开放式创新是制造业企业实现高质量发展的重要方式。本文基于沪深A股制造业企业的微观数据,以社会信用标准体系建设试点为准自然实验,运用多时点双重差分法研究发现,社会信用标准体系建设从行为和绩效两方面提高制造业企业的开放式创新水平,该结论在一系列稳健性检验后依旧成立。机制检验发现,社会信用建设通过降低企业进行创新活动的风险并增强企业合作研发的意愿,进而提升企业开放式创新水平。异质性分析表明,社会信用建设主要促进企业的策略性创新行为与绩效,而对实质性创新绩效的促进效果不显著。社会信用建设在国有制企业、小型企业以及内部控制较强的企业中展现出显著促进效果。在竞争充分、技术更易被侵权的行业中,企业开放式创新受社会信用建设正向影响更明显。本研究为完善社会信用标准体系建设、推动企业开放式创新提供政策参考。

Open innovation is an important approach for manufacturing enterprises to achieve high-quality development.Based on micro-level data from manufacturing firms listed on the Shanghai and Shenzhen A-share markets, this study treated the pilot program for the construction of the social credit standard system as a quasi-natural experiment and employed a multi-period difference-in-differences (DID) approach for empirical analysis.The findings revealed that the construction of the social credit standard system enhances open innovation levels in manufacturing enterprises in terms of both behavior and performance.This conclusion remains robust after a series of sensitivity tests.Mechanism analysis shows that social credit construction reduces the risks associated with innovation activities and increases firms' willingness to engage in collaborative R&D, thereby improving open innovation levels.The social credit system construction mainly promotes strategic innovation behaviors and performance, while its effect on substantive innovation performance is not significant.The promotion effect is particularly evident in state-owned enterprises, small enterprises, and firms with strong internal controls.In industries characterized by high competition and where technology is more prone to infringement, the positive impact of social credit construction on open innovation is more pronounced.This study will provide policy implications for improving the social credit standard system and promote the level of open innovation in enterprises.