中文摘要：

本文考虑制造商和供应商共同努力改进产品质量的情况,研究在一个制造商处于领导地位的二级供应链中,如何通过有效的治理机制设计,提高产品质量水平,协调供应链。文章以理想的协同情况为基准,分析了两种治理机制下的质量努力程度,比较了正式契约治理与契约和关系混合治理对供应链效率的影响。结果表明,关系和契约混合治理在有效范围内能够将制造商和供应商紧密地联系起来,通过共同的质量努力获得比正式契约治理下更大的利润,实现供应链协调。

英文摘要：

In this paper,quality control mechanism is studied in a supply chain that consists of one supplier and one manufacturer. We discuss the choice of governance mechanism to improve product quality and coordinate the supply chain,when the manufacturer and supplier make concerted efforts to improve the quality. Quality control decision is analyzed in three different scenarios which include cooperation,formal contract governance and relationship contract governance. Considering the scenario of cooperation as a benchmark,we compare the effect of two governance mechanisms on supply chain performance. It shows that the combining governance mechanism of relationship and contract governance can get better effect of coordination due to higher effort of quality control.