Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021Outstanding Young Research Grant from NSFC (National Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021Outstanding Young Research Grant from NSFC (National Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021Outstanding Young Research Grant from NSFC (National Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021Outstanding Young Research Grant from NSFC (National Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021Outstanding Young Research Grant from NSFC (National Science Foundation of China), No. 71822201, “Research on pricing information goods”, RMB 1,300,000 (2019-2021