检索结果-南通市图书馆

investors’ Social Network and return

Journal of Social Computing 2022年第3期3卷 231-249页

作者： Yu He Rong Lu Xiao Han Department of Finance Shanghai University of Finance and EconomicsShanghai 200433China Department of Investment Zhejiang University of Finance and EconomicsHangzhou 310018China School of Information Management&Engineering Shanghai University of Finance and EconomicsShanghai 200433China.

Restricted by the availability of investors’account data,existing studies know little about the reasons for differences in investors’return in financial markets.Given this,this paper,based on the unique account data,reveals that the differences in investors’return are correlated to their locations in the social network.Conclusions are as follows.(1)investors’social network constructed based on the submission time of completed orders describes the information diffusion process of financial markets.Information diffuses from the center of the network to the edge,and investors’return depends on their position in the network.(2)investors’social network affects their return through the positive spillover mechanism of their behavior.Wealthy investors are in the center of the social network,the stronger the information sharing,the higher the status in the network,the higher the return;while retail investors are on the edge of the social network,and when their network centrality is certain,they even suffer return penalty for information sharing.(3)The speed of information diffusion in investors’social network has an important impact on asset pricing.Stocks’volatility,return,and liquidity are high in financial markets with an intermediate level of information diffusion speed.This paper puts forward new reasons for differences in investors’return from the perspective of investors’social network,and holds that big data in the capital market deserve further exploration with the social network method.

关键词： social networks investor networks investors’return asset pricing information diffusion

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