环境规制是否改善了北京市的空气质量——基于合成控制法的研究
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1004-4892|volume|6|104-112
ISSN: 1004-4892
Source: 财经论丛, Vol.volume, Iss.6, 2016-01, pp. : 104-112
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