中美在亚太地区农产品贸易成本弹性测度与分析——基于改进的超越对数引力模型

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-4433|volume|9|112-116

ISSN: 1002-4433

Source: 世界农业, Vol.volume, Iss.9, 2015-01, pp. : 112-116

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Abstract