Impacts of social networks in an agent-based artificial stock market

Xiaoting Dai, Jie Zhang, Victor Chang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We propose an agent-based artificial stock market to investigate the influences of social networks on financial markets. It contains four types of traders whose information sets and trading strategies are different. The application of artificial intelligence is employed in informed and uninformed traders’behaviour and heterogeneity. When information is exogenous, social networks result in higher volatility and trading volume and lower price distortion and bid-ask spread. When information is endogenous, the influences are reversed. The reason is that social networks harm information production after traders tend to rely on information from communication, instead of spending a cost on it.

Original languageEnglish
JournalEnterprise Information Systems
Early online date1 Dec 2021
Publication statusE-pub ahead of print - 1 Dec 2021

Bibliographical note

This is an Accepted Manuscript version of the following article, accepted for publication in Enterprise Information Systems. Xiaoting Dai, Jie Zhang & Victor Chang (2021) Impacts of social networks in an agent-based artificial stock market, Enterprise Information Systems, DOI: 10.1080/17517575.2021.2008514
. It is deposited under the terms of the Creative Commons Attribution-NonCommercial License (, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Funding Information:
The authors would like to thank Professor Victor Chang for the research support from VC Research (VCR 0000146).


  • artificial intelligence
  • bid-ask spread
  • genetic programming
  • price distortion
  • Social networks
  • trading volume
  • volatility


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