【摘要】 在当前国际关系复杂背景下，供应链安全成为广泛关注的议题。本文基于上市企业供应链数据，探究供应商内部化对企业出口产品质量的影响。研究发现，供应商内部化能显著提升企业的出口产品质量，经稳健性检验和内生性检验后该结论仍然成立。对于股权制衡度较高的企业、信息披露质量较高的企业和行业竞争程度较高的企业，供应商内部化对企业出口产品质量的促进作用更大。机制分析表明，供应商内部化通过降低供需偏离度、供应商转化成本以及供应链中断风险，带来出口产品质量的提升。针对内部化策略的有效实施路径研究发现，当企业将管理费用控制在合理区间内，并以投资设立方式组建供应链子公司时，供应商内部化对出口产品质量的提升效应才能充分释放。更多还原

【Abstract】 Against the backdrop of complex international relations,supply chain security has become a widely concerned issue.Based on supply chain data of listed enterprises,this study investigates the impact of supplier internalization on enterprises′export product quality.The results indicate that supplier internalization significantly improves firms′export product quality,and the conclusion remains valid after robustness tests and endogeneity treatment.The positive effect of supplier internalization on export product quality is stronger for firms with a higher degree of equity balance,firms with higher information disclosure quality,and firms operating in more competitive industries.Mechanism analysis shows that supplier internalization enhances export product quality by reducing the supply-demand deviation,lowering supplier switching costs,and mitigating supply chain disruption risks.Further research on the effective implementation of internalization strategies shows that,the upgrading effect of supplier internalization on export product quality can be fully realized only when firms keep management expenses within a reasonable range and establish supply chain subsidiaries through direct investment.更多还原