客户集中度、企业规模与研发投入强度——来自创业板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: 1004-8308|29|5|43-53

ISSN: 1004-8308

Source: 研究与发展管理, Vol.29, Iss.5, 2017-01, pp. : 43-53

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Abstract