研发投入、纯技术效率与企业价值研究——来自中国医药制造业上市公司的经验证据

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-6711|volume|2|60-66

ISSN: 1002-6711

Source: 中国科技论坛, Vol.volume, Iss.2, 2016-01, pp. : 60-66

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Abstract