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Circular economy indicators: What do they measure?

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Abstract
Circular Economy (CE) is a growing topic, especially in the European Union, that promotes the responsible and cyclical use of resources possibly contributing to sustainable development. CE is an umbrella concept incorporating different meanings. Despite the unclear concept, CE is turned into defined action plans supported by specific indicators. To understand what indicators used in CE measure specifically, we propose a classification framework to categorise indicators according to reasoning on what (CE strategies) and how (measurement scope). Despite different types, CE strategies can be grouped according to their attempt to preserve functions, products, components, materials, or embodied energy; additionally, indicators can measure the linear economy as a reference scenario. The measurement scope shows how indicators account for technological cycles with or without a Life Cycle Thinking (LCT) approach; or their effects on environmental, social, or economic dimensions. To illustrate the classification framework, we selected quantitative micro scale indicators from literature and macro scale indicators from the European Union ‘CE monitoring framework’. The framework illustration shows that most of the indicators focus on the preservation of materials, with strategies such as recycling. However, micro scale indicators can also focus on other CE strategies considering LCT approach, while the European indicators mostly account for materials often without taking LCT into account. Furthermore, none of the available indicators can assess the preservation of functions instead of products, with strategies such as sharing platforms, schemes for product redundancy, or multifunctionality. Finally, the framework illustration suggests that a set of indicators should be used to assess CE instead of a single indicator.
Keywords
Circular economy, Indicators, Sustainability, Life cycle thinking

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Chicago
Longaray Moraga, Gustavo, Sophie Huysveld, Fabrice Mathieux, Gian Andrea Blengini, Luc Alaerts, Karel Van Acker, Steven De Meester, and Jo Dewulf. 2019. “Circular Economy Indicators: What Do They Measure?” Resources, Conservation and Recycling 146: 452–461.
APA
Longaray Moraga, G., Huysveld, S., Mathieux, F., Blengini, G. A., Alaerts, L., Van Acker, K., De Meester, S., et al. (2019). Circular economy indicators: What do they measure? Resources, Conservation and Recycling, 146, 452–461.
Vancouver
1.
Longaray Moraga G, Huysveld S, Mathieux F, Blengini GA, Alaerts L, Van Acker K, et al. Circular economy indicators: What do they measure? Resources, Conservation and Recycling. 2019;146:452–61.
MLA
Longaray Moraga, Gustavo et al. “Circular Economy Indicators: What Do They Measure?” Resources, Conservation and Recycling 146 (2019): 452–461. Print.
@article{8617340,
  abstract     = {Circular Economy (CE) is a growing topic, especially in the European Union, that promotes the responsible and cyclical use of resources possibly contributing to sustainable development. CE is an umbrella concept incorporating different meanings. Despite the unclear concept, CE is turned into defined action plans supported by specific indicators. To understand what indicators used in CE measure specifically, we propose a classification framework to categorise indicators according to reasoning on what (CE strategies) and how (measurement scope). Despite different types, CE strategies can be grouped according to their attempt to preserve functions, products, components, materials, or embodied energy; additionally, indicators can measure the linear economy as a reference scenario. The measurement scope shows how indicators account for technological cycles with or without a Life Cycle Thinking (LCT) approach; or their effects on environmental, social, or economic dimensions.

To illustrate the classification framework, we selected quantitative micro scale indicators from literature and macro scale indicators from the European Union ‘CE monitoring framework’. The framework illustration shows that most of the indicators focus on the preservation of materials, with strategies such as recycling. However, micro scale indicators can also focus on other CE strategies considering LCT approach, while the European indicators mostly account for materials often without taking LCT into account. Furthermore, none of the available indicators can assess the preservation of functions instead of products, with strategies such as sharing platforms, schemes for product redundancy, or multifunctionality. Finally, the framework illustration suggests that a set of indicators should be used to assess CE instead of a single indicator.},
  author       = {Longaray Moraga, Gustavo and Huysveld, Sophie and Mathieux, Fabrice and Blengini, Gian Andrea and Alaerts, Luc and Van Acker, Karel and De Meester, Steven and Dewulf, Jo},
  journal      = {Resources, Conservation and Recycling},
  keywords     = {Circular economy,Indicators,Sustainability,Life cycle thinking},
  pages        = {452--461},
  title        = {Circular economy indicators: What do they measure?},
  url          = {http://dx.doi.org/10.1016/j.resconrec.2019.03.045},
  volume       = {146},
  year         = {2019},
}

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