Abstract: Regarding the R&D intensity as an indicator of indigenous R&D efforts, the technology trade as an indicator of international technology flows, G7 countries as the sample, this paper discussed the evolution path of portfolio pattern on indigenous R&D efforts and international technology flows and the effect of the portfolio to the national innovation and economic development. The results showed that: the evolution path of portfolio pattern in G7 countries was external technology drive pattern- internal and external drive pattern - the internal drive and external pull pattern - external technical pull pattern - external technology drive pattern; the effects of indigenous R&D efforts and international technology flows to the national innovation and economic development are significant, although the role of indigenous R&D efforts was more prominent. Based on the experiences of G7, China should strengthen the management of R&D funding when increasing the R&D intensity rapidly, then shift from external technology drive pattern to internal and external drive pattern.

摘要： 本文以研发经费强度作为本土研发努力指标、国际技术贸易作为国际技术流动指标，探讨了G7国家本土研发努力和国际技术流动的组合模式演化路径以及对国家创新和经济发展的作用。研究结果表明：G7国家本土研发努力和国际技术流动组合模式呈现非常清晰的的演化路径-“外部技术驱动模式-内外双驱模式-内驱外拉模式-外部技术拉动模式-外部技术驱动模式”；本土研发努力和国际技术流动对于国家创新和经济发展的作用均比较显著，其中本土研发努力的作用更为突出。借鉴G7国家的发展经验，目前中国在快速增加研发经费强度的同时，迫切需要加强研发经费管理，实现从外部技术驱动模式向内外双驱模式转变。

关键词: 研发努力, 国际技术流动, 模式演化, 效应, G7, R&D efforts, International technology flow, Pattern evolution, effect, G7