以2009—2020年中国西部地区九省份的工业产业为研究对象，基于产品空间的方法可视化分析产业动态比较优势的发展现状、产业空间的演化路径和产业密度分布的变化趋势，实证检验技术关联对区域工业产业升级路径的作用机理。结果表明：（1）研究时段内，资源密集型产业始终处于保持比较优势状态，技术密集型产业尽管得到不断优化但大多仍处于升级未成功阶段，由资源密集型向技术密集型产业转变的趋势增强。（2）2009—2013年，技术关联对产业升级影响较小，产业升级体现出路径突破的演化过程；2014—2020年，产业升级受技术关联影响增强，更多体现出路径依赖的演化过程。（3）技术关联对产业升级的影响主要体现在促进新产业升级与发展方面，而在帮助现有产业保持优势方面效果并不显著。因此，西部地区应着力培育、发展与现有优势产业技术关联较强的新兴产业，全面融入丝绸之路经济带建设。
Based on the product space method, employing a research object of industrial industry in nine western provinces from 2009 to 2020, the development status of dynamic comparative advantage of industry, the evolution path of the industrial space and the changing trend of industrial density distribution were analyzed visually. A model was built to empirically analyze the mechanism of technological relatedness on the upgrading path of regional industry. The results showed that: (1) During the research period, resource-intensive industries always maintained comparative advantages, and technology-intensive industrial structure was continuously optimized, but most of them were still in the stage of upgrading without success. (2) From 2009 to 2013, technological relatedness had little impact on industrial upgrading, and industrial upgrading reflected the evolution progress of path breakthrough; from 2014 to 2020, industrial upgrading was more influenced by technological relatedness, which more reflected the evolution progress of path dependence. (3) The impact of technological relatedness on industrial upgrading process was mainly reflected in promoting the upgrading and development of new industries, but it was not significant in helping existing industries to maintain their advantages. Therefore, the western region should focus on cultivating and developing emerging industries which have strong technological relatedness with existing superior industries, and fully integrate into the Silk Road Economic Belt.
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