中国科学院数学与系统科学研究院期刊网
CJE
“The Cost of Expansion”: Cultivating User Ecosystems on Co-Creation Platforms Under Intra-Group Negative Externalities
Feng ZHU, Jin SONG, Zhigang CAO
China Journal of Econometrics . 2026, (4): 1000 -1019 .  DOI: 10.12012/CJoE2025-0659