--- _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. Proceedings of the International Conference on Information Systems. 2017.' apa: 'Pelster, M. (2017). I’ll Have What S/he’s Having: A Case Study of a Social Trading Network. Proceedings of the International Conference on Information Systems.' 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.” Proceedings of the International Conference on Information Systems, 2017.' ieee: 'M. Pelster, “I’ll Have What S/he’s Having: A Case Study of a Social Trading Network,” Proceedings of the International Conference on Information Systems, 2017.' mla: 'Pelster, Matthias. “I’ll Have What S/He’s Having: A Case Study of a Social Trading Network.” Proceedings of the International Conference on Information Systems, 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' ...