农产品贸易研发知识溢出:基于Coe-Helpman模型在空间维度扩展后的实证研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-4670|volume|9|29-42

ISSN: 1002-4670

Source: 国际贸易问题, Vol.volume, Iss.9, 2015-01, pp. : 29-42

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Abstract