贸易自由化影响了研发创新效率吗?
Publisher： 国家哲学社会科学学术期刊数据库
E-ISSN： 1001-9952|volume|2|15-26
ISSN： 1001-9952
Source： 财经研究, Vol.volume, Iss.2, 2015-01, pp. : 15-26
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Abstract