| Title | A breakthrough in macro-scale circularity and eco-efficiency assessment: A case study of OECD countries |
|---|---|
| ID_Doc | 23217 |
| Authors | Shabanpour, H; Dargusch, P; Wadley, D; Saen, RF; Lieske, SN |
| Title | A breakthrough in macro-scale circularity and eco-efficiency assessment: A case study of OECD countries |
| Year | 2024 |
| Published | |
| Abstract | Countries ' circularity performance and CO 2 emissions should be addressed as a part of the UN net -zero Sustainable Development Goals (SDGs) 2030. Macro -scale circularity assessment is regarded as a helpful tool for tracking and adjusting nations ' progress toward the sustainable Circular Economy (CE) and SDGs. However, practical frameworks are required to address the shortage of real -world circularity assessments at the macro level. The establishment of CE benchmarks is also essential to enhance circularity in less sustainable nations. Further, monitoring the extent to which nations ' circularity activities are sustainable and in line with the SDGs is an area that lacks sufficient practical research. The current research aims to develop a macro -level framework and benchmarks for national sustainable circularity assessments. Methodologically, we develop a dynamic network data envelopment analysis (DN-DEA) framework for multi -period circularity and eco-efficiency assessment of OECD countries. To do so, we incorporate dual -role and bidirectional carryovers in our macroscale framework. From a managerial perspective, we conduct a novel comparative analysis of the circularity and eco-efficiency of the nations to monitor macro -scale sustainable CE trends. Research results reveal a significant performance disparity in circularity, eco-efficiency, and benchmarking patterns. Accordingly, circularly efficient nations cannot necessarily be considered eco-friendly and sustainable. Although Germany (as a superior circular nation) can be regarded as a circularity benchmark, it cannot serve as an eco-efficiency benchmark for less eco-efficient nations. Hence, the new method allows decision -makers not only to identify the nations ' circularity outcome but also to distinguish sustainable nations from less sustainable ones. This, on the one hand, provides policymakers with a multi -faceted sustainability analysis, beyond the previous unidimensional analysis. On the other, it proposes improvement benchmarks for planning and regulating nations ' future circularity in line with real sustainability goals. The capabilities of our innovative approach are demonstrated in the case study. |
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