Sürdürülebilir Kalkınma Amaçları
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- MakaleAçık Erişim2026A novel decision-making approach based on regret theory under bipolar Z-number information
Altun, Fatma; Köseoğlu, Ali; Şahin, Rıdvan
This study introduces a new set theory called bipolar fuzzy Z-number set that makes it possible to express an information both bipolar from positive and negative perspectives, and with the reliability of it. Then, besides basic set-theoretical operations and the score function, a new distance measure is also presented. Furthermore, a decision method integrating with regret theory is proposed. Additionally, to compute the weights of criteria under bipolar Z-number information, a method in which objective and subjective criterion weights are considered simultaneously is introduced by combining the weights found by SWARA and MEREC. Also, a model with standard deviation is developed to obtain decision maker’s weights. Finally, the problem of selection of paper raw material is handled to demonstrate stability and advantage of the proposed method.
- MakaleYalnız künye2026Evaluation of Factors Affecting Innovation in Developed and Developing Countries by MCDM
Salad, Liban Daud; Seyhan, Nazll
This study comparatively analyzes the economic, social, and technological factors determining the innovation performance of developed and developing countries within a holistic multi-criteria decision-making (MCDM) framework, using data from 2013 and 2021. The criterion weights determined by CRITIC and SWARA, and the WEDBA results, indicate a significant structural shift between the periods. In developed countries, R&D expenditures, patent production, and intellectual property protection are key determinants of innovation performance; while in developing countries, digital infrastructure, human capital, and education investments stand out. The findings reveal that innovation policies based on strategic priorities specific to country groups are more effective.