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Effects of urban environmental policies on improving firm efficiency: Evidence from Chinese new energy vehicle firms 期刊论文
JOURNAL OF CLEANER PRODUCTION, 2019, 卷号: 215, 页码: 600-610
作者:  Li, Yawen;  Zeng, Bohan;  Wu, Tian;  Hao, Han
收藏  |  浏览/下载：205/0  |  提交时间：2019/04/02
Chinese new energy vehicles firms  Policy and financial support  Firm efficiency  Data envelopment analysis model  Random effects model  
Application of interpretable machine learning models for the intelligent decision 期刊论文
NEUROCOMPUTING, 2019, 卷号: 333, 页码: 273-283
作者:  Li, Yawen;  Yang, Liu;  Yang, Bohan;  Wang, Ning;  Wu, Tian
收藏  |  浏览/下载：195/0  |  提交时间：2019/03/05
Machine learning  XGBoost  R&D investments  Firm size  Innovation performance