政府资助与企业研发投入——基于面板数据门槛模型的实证研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1001-8409|29|9|38-42

ISSN: 1001-8409

Source: 软科学, Vol.29, Iss.9, 2015-01, pp. : 38-42

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Abstract