TY - Journal of Guizhou University of Finance and Economics A1 - YAN Yong-sheng, LI Ling-fei, SHAO Chuan-lin T1 - Intellectual Property Strategy and Private Enterprise Innovation—A quasi-natural experiment based on the national intellectual property rights demonstration city pilot Y1 - 2022-09-15 JF - Journal of Guizhou University of Finance and Economics JO - Journal of Guizhou University of Finance and Economics SP - 63 EP - 72 VL - 40 IS - 05 UR - https://gcxb.gufe.edu.cn N1 - ER -