“一带一路”战略背景下,西部地区吸引FDI比重逐年增长,经济将加快发展步伐,企业技术能力得到不断提升。本文利用协整理论考察跨国公司在我国西部地区的技术扩散效应。实证结果表明,我国西部地区外商直接投资与技术扩散存在长期稳定关系,证实了跨国公司的直接投资是我国西部地区技术进步的一个重要原因。 Under the “One Belt and One Road” strategy, the proportion of FDI in the western region will increase year by year, the economy will accelerate the pace of development, and the technological capabilities of enterprises will continue to improve. In this paper, cointegration theory is used to examine the technological diffusion effect of MNCs in the western region of China. The empirical results show that there is a long-term and stable relationship between foreign direct investment and technological diffusion in western China, confirming that direct investment by multinational corporations is an important reason for the technological progress in western China.