A New Method to Solve Matrix Game with Interval Payoffs and its MATLAB Code

Monika Bisht, Ismat Beg and Shivam Rawat ()
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Monika Bisht: Department of Mathematics, Graphic Era Hill University, Dehradun 248001, Uttarakhand, India
Shivam Rawat: ��Department of Mathematics, Graphic Era (Deemed to be University), Dehradun 248001, Uttarakhand, India

International Game Theory Review (IGTR), 2024, vol. 26, issue 03, 1-32

Abstract: Game theory is of substantial significance in diverse domains, acting as a potent instrument to comprehend and assess strategic engagements among rational decision-makers. It formulates mathematical models to represent strategic interactions among rational decision-makers in the competitive world. Due to ambiguity in the real-world problems, acquiring the precise payoff values of a matrix game proves challenging. However, in numerous scenarios, these payoffs fluctuate within specific ranges, making them suitable for consideration as interval numbers. This leads to the formulation of a special form of game problem known as the interval valued game problem (IVGP). Some methodologies exist in the literature to find the optimal strategies as well as the value of game for IVGP, but most of them possess some limitations, resulting in the need for proposing a new methodology to find the optimal strategies and value of game. Thus, in this paper, a new solution method for game problems with payoffs represented as interval numbers is presented, utilizing the fuzzy concept. The process begins by transforming the interval payoffs into fuzzy numbers using a ranking function. Subsequently, these fuzzy payoffs are converted into crisp values, leading to the formulation of the crisp matrix game. The resulting crisp matrix game is then solved using linear programming approach. Additionally, MATLAB code for the proposed method is developed and proposed to streamline the computation process, enhancing comparison and decision-making efficiency, particularly when dealing with large payoff matrices. Furthermore, three numerical examples are provided to illustrate the validity of the proposed approach as well as its MATLAB code. A real-life example of IVGP in the realm of tourism industry is also provided. Finally, a comparative analysis is conducted, comparing the proposed method with some existing methods.

Keywords: Fuzzification; generalized heptagonal fuzzy number; interval numbers; MATLAB; ranking function; two-person zero-sum game (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0219198924500014

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