This paper utilizes a unique database to investigate how trading activity affects risk-neutral-skewness (RNS), and how risk attitude affects the return predictability of RNS in China SSE 50ETF option market. We find that the individual investors’ option trading activities play a dominant role...

Studies have shown that influential nodes play an important role in all kinds of dynamic behavior in the complex network. Excavation or recognition of such nodes contributes to the development of application areas such as social network advertising and user interest recommendation. Although some...