Akademik Veri Yönetim Sistemi
cilt.11, ss.1-12, 2025 (ESCI, Scopus)
Protecting water resources, expanding access to safe drinking water, reducing water pollution, recycling wastewater, and increasing the sustainability of water resources are important imperatives for the countries. In this study, Organisation for Economic Co-Operation and Development (OECD) countries’ data on sustainable water and sanitation indicators of Sustainable Development Goal (SDG) 6 were collected and multiple attribute decision-making (MADM) methods were used to propose a ranking model. This model included finding the weights of indicators that are selected SDG 6 targets based on data availability and ranking OECD countries according to their compatibility with SDG 6. Entropy, CRITIC, and equal weights were used for weighting the indicators. VIKOR, MOORA, and MABAC methods were used for ranking OECD countries. The relationship between the rankings obtained from the applied methods was examined by calculating Spearman’s rho correlation coefficient. Spearman rho values were high and all correlations were significant at the 0.01 level of significance, showing the similarity and consistency of the ranking results from the applied methods. The ranking results from all methods indicated that Switzerland was ranked first being the most compatible country to SDG 6 and Mexico was ranked last being the least compatible country to SDG 6. Switzerland and Mexico are separated from other OECD countries according to air pollution levels and country-specific environmental policy stringency index which are strongly associated with the obtained ranking index. The results also indicated that the compatibility of the DACH countries (Germany, Austria, and Switzerland) and Nordic Region countries (Denmark, Norway, Sweden, and Finland) to SDG 6 was high. For future studies, the proposed model for finding indicator weights and ranking countries can also be applied to cities and locations (rural and urban areas) based on SDG indicators.