---
_id: '1452'
abstract:
- lang: eng
  text: Opinion leaders of an investment network can have a significant impact on
    capital mar-kets because their investment decisions are adopted by their peers
    and trigger large trad-ing cascades, increasing herding behavior and comovement
    among stock returns. This paper analyzes the interaction-based relations of traders
    from a large social trading plat-form and identifies the driving forces and the
    opinion leaders within a large online trading network as the nodes with the highest
    centrality and the highest force of infection, respec-tively. Relying on recent
    insights from epidemiological research, I maintain that central-ity identifies
    the most central traders in the network, while the expected force quantifies the
    most influential traders and their spreading power. I study the behavior and charac-teristics
    that set central and influential traders apart from other traders. The ability
    to identify focal points and their trading behavior within a trading network is
    important for investors, investment advisers, and policy makers.
article_type: original
author:
- first_name: Matthias
  full_name: Pelster, Matthias
  id: '67265'
  last_name: Pelster
  orcid: ' https://orcid.org/0000-0001-5740-2420'
citation:
  ama: 'Pelster M. I’ll Have What S/he’s Having: A Case Study of a Social Trading
    Network. <i>Proceedings of the International Conference on Information Systems</i>.
    2017.'
  apa: 'Pelster, M. (2017). I’ll Have What S/he’s Having: A Case Study of a Social
    Trading Network. <i>Proceedings of the International Conference on Information
    Systems</i>.'
  bibtex: '@article{Pelster_2017, title={I’ll Have What S/he’s Having: A Case Study
    of a Social Trading Network}, journal={Proceedings of the International Conference
    on Information Systems}, author={Pelster, Matthias}, year={2017} }'
  chicago: 'Pelster, Matthias. “I’ll Have What S/He’s Having: A Case Study of a Social
    Trading Network.” <i>Proceedings of the International Conference on Information
    Systems</i>, 2017.'
  ieee: 'M. Pelster, “I’ll Have What S/he’s Having: A Case Study of a Social Trading
    Network,” <i>Proceedings of the International Conference on Information Systems</i>,
    2017.'
  mla: 'Pelster, Matthias. “I’ll Have What S/He’s Having: A Case Study of a Social
    Trading Network.” <i>Proceedings of the International Conference on Information
    Systems</i>, 2017.'
  short: M. Pelster, Proceedings of the International Conference on Information Systems
    (2017).
date_created: 2018-03-20T11:34:47Z
date_updated: 2022-01-06T06:52:00Z
department:
- _id: '186'
- _id: '578'
keyword:
- Online trading
- investment advice
- network modeling
- Expected Force
- herding.
language:
- iso: eng
publication: Proceedings of the International Conference on Information Systems
publication_status: published
status: public
title: 'I’ll Have What S/he’s Having: A Case Study of a Social Trading Network'
type: journal_article
urn: '14524'
user_id: '67265'
year: '2017'
...