DONG, DAYONG; LI, LIAOLIAO; YANG, DAN; ZHU, HUILIN; … - In: International Journal of Information Technology & … 11 (2012) 04, pp. 777-792
This study investigates asynchronous information transmission between stock returns and abnormal posting volume on the online stock message boards in China. Based on a robust GARCH model, the study finds that there are significant two-way volatility spillover effects: a positive volatility...