Abstract

In recent years, the definition and measurement of the well-being levels of nations have been among the most studied topics by researchers. After World War II, national income was used for this purpose; however, due to the impact of globalization, the inadequacy of this approach was identified, and a human-oriented development approach was adopted. Thus, the Human Development Index (HDI), first introduced in 1990, was presented as an important indicator. The need to define and measure well-being in more detail based on changing conditions resulted in the calculation of the Better Life Index (BLI) by the Organization for Economic Cooperation and Development (OECD) in 2011. In the present study, BLI 2017 data for 35 OECD member countries and 3 non-member states were analyzed with Gray Relational Analysis (GRA). In Multicriteria Decision Making (MCDM) analyses, determination of the weight is an important and critical issue that directly affects the results. Therefore, four objective weight determination methods, including mean-weights (MW) and standard deviation (SD), entropy, and CRITIC, were used in the study. Countries were ranked based on gray coefficient scores determined in the analysis. Thus, it was determined that the countries with the highest scores included Norway, Australia, USA, Canada, Iceland, Switzerland, Denmark, and, Sweden while the countries with the lowest scores were South Africa, Turkey, Mexico, Greece, and.

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