中文摘要：

高技术制成品技术复杂度越高，生产过程中需要的高级生产性服务投入就越多，生产性服务进口可通过提供更多更好的中间服务投入来促进一国专业化生产和出口高复杂度的高技术产品，从而提升一国商品尤其是高技术制成品的出口复杂度。本文根据52个国家的跨国面板数据进行实证分析，结果发现：与所有商品出口复杂度相比，生产性服务进口对高技术制成品出口复杂度的促进效应更大；与发展中国家相比，生产性服务进口对发达国家出口复杂度的影响更突出；不同部门生产性服务进口对高技术制成品出口复杂度的促进效应存在较大差异，其对发达国家和发展中国家高技术制成品出口复杂度的影响也差异明显。

英文摘要：

The higher the export sophistication of high-tech manufactured goods is, the more advanced producer servicesis needed, and import of producer services will promote the production of high-tech manufactured goods upgrade the sophistica-tion of export through providing more advanced producer services. This paper empirically analyzes the influence of producerservices imports on the export sophistication of high-tech manufactured goods based on cross-country panel data of 52 coun-tries. The result shows that producer services imports play a more significant role in promoting export sophistication of high-tech manufactured goods than that of all products, and have more influence on developed countries than on developing countries. Imports of different producer services have different influence on export sophistication of high-teeh manufactured goodsbetween developed countries and developing countries.