Proceedings of the 6th International Conference on Internet Finance and Digital Economy (ICIFDE 2026)

6th International Conference on Internet Finance and Digital Economy (ICIFDE 2026)

📍Guiyang, China🗓️ 28-30 August 2026
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Classification-Based Consensus Decision-Making for Portfolio Selection Considering Overconfidence

Authors
Faxin Cheng1, Nan Liu2, Tiantian Hao3, *
1School of Management, Jiangsu University, Zhenjiang, 212013, PR China
2Shanghai Shuixing Home Textile E-commerce Co., Ltd, Shanghai, 201400, PR China
3School of Economics, Trade & Tourism, Hefei Technology College, Hefei, 230012, PR China
*Corresponding author. Email: haotiantian_ujs@126.com
Corresponding Author
Tiantian Hao
Available Online 14 November 2026.
DOI
10.2991/978-94-6239-830-6_22How to use a DOI?
Keywords
Portfolio; Fund team; Classification-based consensus; Overconfidence; Stock pool
Abstract

Constructing a rational stock portfolio selection model is critical for enhancing investment returns. Given the negative impact of fund team members’ overconfidence on portfolio selection, we propose a classification-based consensus decision-making method and a minimum adjustment classification-based consensus model that consider overconfidence. By identifying overconfident members and providing adjustment recommendations, we aim to achieve group consensus on stock classifications. The case study and analysis indicate that overconfidence affects stock classifications, and identifying overconfident members effectively improves group classification-based consensus level. The research findings provide a theoretical basis for fund teams to identify overconfident members, and offer methodological guidance for fund companies to facilitate consensus-reaching in portfolio selection.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 6th International Conference on Internet Finance and Digital Economy (ICIFDE 2026)
Series
Advances in Economics, Business and Management Research
Publication Date
14 November 2026
ISBN
978-94-6239-830-6
ISSN
2352-5428
DOI
10.2991/978-94-6239-830-6_22How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Faxin Cheng
AU  - Nan Liu
AU  - Tiantian Hao
PY  - 2026
DA  - 2026/11/14
TI  - Classification-Based Consensus Decision-Making for Portfolio Selection Considering Overconfidence
BT  - Proceedings of the 6th International Conference on Internet Finance and Digital Economy (ICIFDE 2026)
PB  - Atlantis Press
SP  - 270
EP  - 285
SN  - 2352-5428
UR  - https://doi.org/10.2991/978-94-6239-830-6_22
DO  - 10.2991/978-94-6239-830-6_22
ID  - Cheng2026
ER  -