A systematic review for measuring circular economy: The 61 indicators

The circular economy indices are increasingly recognized as a useful tool to support the development of policies in providing information, reducing environmental pressures and impacts through a circular recycling process. The aim of the paper is to provide a complete overview of circular economy indices.Starting by 137 articles published from 2000 to 2019, the analysis surveys 61 indicators measuring the circular economy. The indicators were grouped by using a double classification: first according to the three spatial dimensions of sustainability -macro, micro and meso- then on the basis of the 3R Core CE principles. Providing all the information related to the formulation strategy, scaling, normalization, weighting and aggregation methodology allows the readers to get a dedicate toolkit.