融资约束、生产率异质性与企业自主创新

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 2095-9397|volume|22|172-174

ISSN: 2095-9397

Source: 商业经济研究, Vol.volume, Iss.22, 2017-01, pp. : 172-174

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Abstract