基于地理效应的国际R&D溢出渠道再考察

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-4670|volume|11|144-155

ISSN: 1002-4670

Source: 国际贸易问题, Vol.volume, Iss.11, 2015-01, pp. : 144-155

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Abstract