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Visualizing Investment Decision on Decision Balls

Author(s): Li-Ching Ma

Journal: American Journal of Operations Research
ISSN 2160-8830

Volume: 01;
Issue: 02;
Start page: 57;
Date: 2011;
Original page

Keywords: Visualization | Decision Ball | Investment decision | Portfolio

Decision makers’ choices are often influenced by visual background information. This study uses open-ended equity funds in Taiwan to investigate three well-known optimal portfolio models, including the mean-variance, maximin, and minimization of mean absolute deviation. The optimal portfolios are then visualized on Decision Balls to assist investors in making investment decisions. By observing the Decision Balls, investors can see the optimal portfolios, compare the optimal weights provided by the different models, view the cluster of funds, and even find substitute funds if preferred funds are not available.

Tango Jona
Tangokurs Rapperswil-Jona

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