TY - Resources Science A1 - Hailin YAO, Ruokang JIA T1 - Government subsidies and productivity of resource recycling enterprises —— an empirical study on panel threshold effect of listed enterprises in China Y1 - 2018-11-12 13:13:50.753 JF - Resources Science JO - Resources Science SP - 2280 EP - 2296 VL - 40 IS - 11 UR - {https://www.resci.cn/EN/10.18402/resci.2018.11.14} N1 - 10.18402/resci.2018.11.14 ER -