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Confucian culture, the foundation of ancient Chinese culture, has been cultivated and passed down through the ages. Its deeply held beliefs and ideals have influenced not just the composition and operations of Chinese society, but also the way enterprises handle their operations around the world. There is, however, a dearth of study on the relationship between supply chain efficiency and Confucian culture. Based on the institutional theoretical framework, this study employs a fixed effect model to examine the mechanism by which Confucian culture, an informal institutional factor, affects supply chain efficiency using data samples from non-financial listed companies in the Shanghai and Shenzhen A-share markets from 2010 to 2021. The results show that Confucian culture can significantly reduce an enterprise's inventory turnover days, thereby effectively improving supply chain efficiency, and this conclusion is still true after a series of robustness tests. Heterogeneous analysis reveals the differences in the impact of Confucian culture on supply chain efficiency in different corporate contexts: that is, the positive impact of Confucian culture is particularly obvious for companies with weak internal controls or facing lower economic policy uncertainty. The mechanism test points out that Confucian culture promotes the efficiency of supply chains by enhancing enterprises 'profitability and reducing information asymmetry. Managers should be aware of how informal institutional factors, like Confucian culture, affect supply chain efficiency. They should also incorporate the cultural environment into management optimization to improve cooperation and trust, which will lower inventory turnover days and increase supply chain efficiency.

儒家文化作为中国古代文化的核心根基，历经数千年孕育传承至今。其秉持的核心理念与价值追求，不仅深刻塑造了中国社会的结构与运行逻辑，更对全球范围内企业的经营运作产生了深远影响。然而当前针对儒家文化与供应链效率（supply chain efficiency）之间关联的研究仍较为匮乏。本研究基于制度理论框架（institutional theoretical framework），以2010至2021年沪深A股市场非金融上市公司（non-financial listed companies）为研究样本，采用固定效应模型（fixed effect model），探究作为非正式制度因素（informal institutional factor）的儒家文化对供应链效率的作用机制。研究结果表明，儒家文化可显著降低企业存货周转天数（inventory turnover days），进而有效提升供应链效率；该结论在经过一系列稳健性检验（robustness tests）后依然成立。异质性分析（heterogeneous analysis）进一步揭示了儒家文化对供应链效率的影响在不同企业情境下存在差异：即当企业内部控制（internal controls）薄弱或面临较低的经济政策不确定性（economic policy uncertainty）时，儒家文化的正向提升作用尤为显著。机制检验（mechanism test）结果显示，儒家文化可通过提升企业盈利能力、降低信息不对称（information asymmetry）程度来促进供应链效率提升。企业管理者应充分认知儒家文化这类非正式制度因素对供应链效率的影响路径，并将文化环境纳入管理优化范畴，通过强化企业间合作与信任以降低存货周转天数，最终提升供应链整体效率。