Abstract. The objective of this paper is to examine the range of eco-innovation levels in the area of resource efficiency among the countries that comprise the EU. The resource efficiency output parameters and associated sub-indicators were employed for this goal to be accomplished. The variety of the eco-innovation degree in each member nation of the European Union was analyzed utilizing actual data, and the tendencies for modifications in this heterogeneity were discovered. The evaluation revealed that there continues to be a significant gap between the nation's most and least innovative countries when it comes to the degree of eco-innovation in the variables examined in the member countries of the European Union. According to the data, there is still a significant gap between the nation's most eco-innovative and least eco-inventive nations, with the disparity in eco-innovation levels among the European Union's Member States' indices not decreasing.

Keywords: eco-innovation, assessing, resource efficiency, indicators, European Union countries.