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Article type: Research Article
Authors: Chiadamrong, Navee; * | Suthamanondh, Pisacha
Affiliations: Industrial Engineering and Logistics Systems, Sirindhorn International Institute of Technology, Thammasat University, Pathumthani, Thailand
Correspondence: [*] Corresponding author. Navee Chiadamrong. E-mail:[email protected].
Abstract: Competitiveness in the global market is getting more intense. Due to resource and budget constraints, firms need to achieve their expected goals and satisfy all investment constraints under uncertainty. Selecting the set of projects among other candidates to get the most efficient portfolio requires a lot of attention from the Decision Makers (DMs) as this consideration no longer relies purely on the financial term. This problem becomes a multi-objective problem under uncertainty where the financial return and risk from uncertainty are required into the trading off consideration. Due to the financial uncertainty, the chance-constrained programming has been employed in this study for defuzzifying and solving uncertain optimization problems at a specified confidence level that is defined by the DMs. Then, various kinds of investment or financial risk measures, Lower-Semi Variance Index (LSVI), the absolute deviation with the expected FNPV, and the absolute mean-Conditional Value at Risk (CVaR) gap are provided in the selection of such risk measures to show their differences in characteristics and performances in the obtained results. Since, such problems can consist of many project candidates and complex constraints, which may grow beyond the application of the exact optimization approach, a meta-heuristic method, Genetic Algorithm (GA), is introduced to optimize this problem through designing and constructing a decision support tool for the investment portfolio selection and optimization. The applicability of the proposed comparative approach and the constructed tool are illustrated through examples.
Keywords: Multi-objective portfolio selection and optimization, risk of uncertainty, absolute mean-conditional value at risk, Lower Semi-Variance Index (LSVI), absolute deviation with the expected FNPV
DOI: 10.3233/JIFS-233036
Journal: Journal of Intelligent & Fuzzy Systems, vol. 46, no. 4, pp. 10883-10906, 2024
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