The research is concerned with the construction of a comprehensive index of socioeconomic development of the regions of Ukraine. For this purpose, a set of data from the rating assessment of the Ministry of Development of Communities and Territories of Ukraine was used. Relying on a large number of indicators (64 indicators, which are combined into 12 groups reflecting a certain aspect of the socioeconomic development of the regions) is the main advantage of this rating assessment among other

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... thors' approaches. However, in the rating assessment from the Ministry there are significant shortcomings associated with the calculation of this comprehensive assessment. Firstly, some values are absent in the set of indicators (most often concerning Luhansk and Donetsk regions). Secondly, there is a simple method of aggregation: the arithmetic mean for each group and among 12 groups, which raises doubts about the consistency of a large number of different indicators in content with the index. To correct the shortcomings of the rating assessment, the article pays more attention to the processing of the data set and applies several methods of aggregation of indicators into a comprehensive index, which are compared to each other and to the rating assessment of the Ministry of Development of Communities and Territories of Ukraine. As a result, the comprehensive index has become more balanced due to greater consistency of indicators with a comprehensive index. The results obtained on the basis of the calculations show that in 2015 and 2018, the city of Kyiv had the highest level of socioeconomic development, the worst was the Luhansk region, which, among other things, is the result of the armed conflict in eastern Ukraine. During these years, Dnipropetrovsk and Kyiv regions also had a high rating. The indices show a significant discrepancy between all regions, and especially with city of Kyiv and Luhansk region. During 2015–2018. there is a tendency to increase the city of Kyiv index from the average value and, at the same time, to reduce this difference for the Luhansk region. But it is noted that some regions do not keep up with this tendency, so in 2015 most regions had values of a comprehensive index above average (13 regions), but in 2018 only eight of these regions remained at the mentioned level.