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关键词
科学技术流动, Romer模型, 引力模型, 地理壁垒, 经济壁垒, 技术壁垒
Key words
Science and Technology Flow, Romer Model, Gravity Model, Geographical Barrier, Economic Barrier, Technical Barrier
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{{article.title_cn}}[J]. {{journal.qiKanMingCheng_CN}}, 2019, 36(22): 35-42 https://doi.org/10.6049/kjjbydc.2019040142
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{{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2019, 36(22): 35-42 https://doi.org/10.6049/kjjbydc.2019040142
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