Fuzzy Multi-criteria Investment Decision Making

InvestmentFuzzy multi-criteria investment decision making decision-making, aMulti-criteria investment decision making complex process crucial for long-term success, demands a meticulous consideration of various criteria in the ever-evolving financial landscape. As traditional methods prove insufficient, Multi-criteria Decision-Making (MCDMMCDM) emerges as a vital framework, providing a holistic perspective by incorporating diverse factors like financial performance, risk, and market trends. This chapter explores the significance of MCDMMCDM in optimizing portfolios, balancing conflicting objectives, and enhancing decision-making transparency. In the face of uncertainty, fuzzy MCDMMCDM becomes a powerful tool, acknowledging the ambiguity inherent in financial data. Fuzzy logic, integrated into MCDM, accommodates imprecise information and subjective judgments, offering decision-makers a realistic and flexible approach. This chapter first presents an integrated intuitionistic Z-AHPZ-AHP & Z-TOPSISZ-TOPSIS methodology to address decision-makers’ hesitancy and uncertainty, utilizing Z-numbersZ-Number to enhance reliability with a focus on their applications in investment contexts. Additionally, an interval-valued Pythagorean fuzzyInterval-valued Pythagorean fuzzy set Weighted Aggregated Sum Product Assessment (WASPAS)Weighted Aggregated Sum Product Assessment (WASPAS) method is presented for investment decision-making, considering its ability to handle complex evaluations and the impreciseness of linguistic terms.