摘要：全球化给与了中国企业压力和动力去提升他们的企业竞争力。越来越多的研究致力于了解企业产品创新能力的提升，以及这将如何影响企业的竞争力;再者，不少研究发现供应链层次结构管理（HSSC）对于提升企业创新表现有很大的帮助，70%的财富50强企业已经采用了供应链管理。因此，优化供应链管理已成为国内企业参与国际市场竞争的战略选择。使用来自不同企业的190份问卷调查结果，根据指标构建原则对数据进行收集和处理后，我们使用层次调节回归，检验了企业供应链层次结构管理（HSSC）的每一个部分与创新能力之间的关系。最后我们全球采购行为（GPB）作为调节变量，探求其如何影响HSSC与产品创新能力之间的关系。我们发现了大量的重要关系，也为企业管理方面提供了一些建议。

关键词：供应链层次结构管理、问卷调查、全球采购行为、产品创新能力

Abstract: Globalization has given Chinese enterprises pressure and motivation to improve their competitiveness. An increasing number of researches are devoted to understanding the improvement of enterprise's product innovation capability and how this will affect the competitiveness of enterprises. Moreover, many studies have found that supply chain hierarchy management(HSSC) is of great help to improve the innovation performance of enterprises, and 70% of Fortune 50 companies have adopted supply chain management. Therefore, optimizing supply chain management has become a strategic choicefor domestic enterprises to participate in international market competition. Using the results of 190 questionnaires from different enterprises,after collecting and processing the data according to the principleof index building, we used hierarchical adjustment regression to examine the relationship between each part of enterprise supply chain hierarchical structure management (HSSC) and innovation capability. Finally, we use global purchasing behavior (GPB) as a moderator to explore how it affects the relationship between HSSC and product innovation capability. We found a number of important relationships and provided some advice for business management.

Keywords: supply chain hierarchy management, questionnaire survey,global purchasing behavior, product innovation capability