Yurij Hayda

In the 21st century, in addition to the generally well-known indicators of material well-being, in the modern paradigm of the welfare state, the quality of the ecological environment is gaining an ever-increasing role. Besides that, the modern definition of welfare state takes into account not only environmental dimension, but also the quality of institutions through the governance system that affects the supply of environmental goods. The study provides the classification of countries according to indicators that can ensure the identification of welfare states and the assessment of the classification role of the criteria for environmental state.
The strong direct correlation between environmental state and government efficiency has been established. The results of the classification of the studied countries obtained by k-means clustering methods indicate the possibility of using the Environmental Performance Index (EPI), Government Effectiveness Index (GEI) and government expenditures indicators as complementary attributes to the classical criteria for the welfare state.
The level of country EPI can be regarded as an important complementary criterion for the welfare state. The country environmental state is much more determined by the government efficiency, the quality of state institutions and their activities, rather than by an extensive increase in the funding of such institutions and environmental measures.