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FROM A LINEAR TO A CIRCULAR ECONOMY MODEL: DEVELOPMENT OF METHODOLOGICAL APPROACHES FOR MEASURING A PROGRESS

Inherently the closed-loop or circular economy model preserves the value of materials and products in the economic system for as long as possible. At the moment a full conceptualization of the circular economy model has not yet occurred, as there is still no consensus among scientists on the social, economic and environmental dimensions of circularity phenomena, discussions are underway regarding the number of levels in waste management hierarchy that is covered by circular economy, as well as concerning possible business models. Despite this, the issue of circular economy operationalization needs further research and its integral part is the measurement of progress in moving from a linear to a circular economy model. The purpose of this study is to refine methodological approaches to measuring progress towards a circular economy model. Existing practices of measuring the progress, based mainly on reuse and recycling indicators, does not fully reflect such concepts as the lifecycles of a material and product, measured by the number of turns and duration. Besides, metrics need to be developed to answer the question of how fully the available circularity potential is used to provide the implementation of 6Rs strategies for a particular territory. It is also important to keep track of the progress in building-up new circularity potential which has no resources form but in the future these opportuni-