Measuring quality of life in Europe: A new fuzzy multicriteria approach

[EN] Quality of life indicators include measures of both objective and subjective well-being to broaden the traditional-focused view towards a multidimensional view of welfare. In this paper, we develop a single reliable index employing fuzzy mathematical modelling that considers the effect of uncertainty and imprecision to the specific nature of the phenomenon being measured. Additionally, we suggest a procedure for this new way of assigning priorities through multicriteria techniques. To this end, we propose a multicriteria approach that introduces the recent notion of picture fuzzy sets to deal with uncertainty and in the assessment of objective and subjective dimensions of quality-of-life performance. To verify the of the whole approach and the credibility of the results, we show its application for monitoring the of life in the European Union. Our results show that fuzzy numbers can be a useful tool when combined multicriteria techniques in the prioritization phase of the criteria and that they increase the quality and of the overall aggregate indicator. Furthermore, through statistical measures we found that in a picture the results are consistent regardless of the multi-criteria approach used to provide a final.