买方势力对上游厂商技术创新的影响研究——基于中国上市公司面板数据的实证检验

买方势力对上游厂商创新的影响研究，近年来引起了学者的广泛关注。文章利用2008-2016年中国9个行业共247家上市企业数据，考察买方势力对上游厂商创新活动的影响。研究发现：买方势力对上游厂商技术创新的影响与卖方势力相关，卖方势力显著正向调节买方势力与厂商创新的关系。平均而言，买方势力对厂商的技术创新有显著正向影响。这一结论在调试样本、更换变量后仍然成立。进一步研究发现：买方势力对上游厂商技术创新的影响因厂商初始创新水平、所在城市发展水平、自身规模的不同而有所差异，表现为初始创新水平越高、城市发展水平越高、规模越小，买方势力对上游厂商技术创新的促进作用越显著。

Impact of Buyer Power on Upstream Manufacturers’ Technological Innovation——Empirical Test Based on the Panel Data of Chinese Listed Companies

The impact of changes in buyer power on the innovation of upstream manufacturers has been an important issue discussed in the academic community. This article uses data from 247 listed companies in 9 industries in China from 2008 to 2016 to examine the influence of buyer forces on upstream manufacturers' innovation activities. The study finds that: The influence of the buyer's power on the technology innovation of the vendor is related to the seller's power, and the seller's power is significantly positively regulating the relationship between the buyer's power and the manufacturer’s innovation. On average, the buyer's power has a significant positive effect on the company’s technological innovation. This conclusion is still valid after debugging samples and replacing variables. Further research finds that, on average, the influence of the buyer on technological innovation varies with the initial level of innovation of the manufacturer, the level of development of the city, and the scale of the city itself. The higher the initial level of innovation, the higher the level of urban development and the smaller the scale, the stronger the buyer’s influence on the upstream manufacturers'technological innovation.