Economic models used in consequential life cycle assessment: a literature review

Almeida, Denise T.L.; Charbuillet, Carole; Heslouin, Charlotte; Lebert, Alexandra; Perry, Nicolás

doi:10.1016/j.procir.2020.01.057

Cited by 12 publications

(11 citation statements)

References 26 publications

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“…On prospective models: In existing LCA studies many economic models have been used to predict the occurrence of processes. Examples of economic forecast models used in LCA are stock-flow consistent models, agent based models, supply and demand analysis and computable general or partial equilibrium models [44]. Each model predicts, to some extent, human decisions.…”

Section: Scenario Models and Integrated Assessmentmentioning

confidence: 99%

“…Utilizing a model to predict future processes and impacts in LCA is referred to as prospective LCA. The chosen prospective model should be in line with the goal, scale and time horizon of the LCA study [44]. For example, changing the further usage of a relatively large group of building products, can cause a large scale effect in an economy thus requiring a model that can assess this change.…”

Section: Scenario Models and Integrated Assessmentmentioning

confidence: 99%

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Circularity and LCA - material pathways: cascade potential and cascade environmental impact of an in-use building product

Schaubroeck

Dewil

Allacker

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Improving circularity in the building sector entails ensuring greater material efficiency to avoid virgin material extraction. To assist stakeholders in decisions regarding salvaging an in-use building product, requires to predict and assess the potential further productive uses of that product and its materials. The range of possible cascade material paths originating from the in-use building product X and their assessments comprise the cascade potential of product X. Method: To determine the cascade potential and impact, we work further on existing efforts done in the field of circularity and life cycle assessment (LCA). This entails discussing scenario models to predict cascade material pathways over time, and multifunctionality solutions to assess those pathways. Due to the fact that the environment is a complex system and long term forecasting is required, the cascade potential can never be exactly determined. Therefore, we first set up conceptual formulas and then discuss steps to make these formulas feasible. Furthermore, the effort to generate the cascade paths originating from a product, can also be used to form circular systems that adhere to carbon mitigation pathways.

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Section: Scenario Models and Integrated Assessmentmentioning

confidence: 99%

Section: Scenario Models and Integrated Assessmentmentioning

confidence: 99%

Circularity and LCA - material pathways: cascade potential and cascade environmental impact of an in-use building product

Schaubroeck

Dewil

Allacker

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The discrepancy between ALCA and CLCA emerges from the literature: the first is focused on the product at the point to appear short-sighted and isolated from the surrounding evolving system; the latter is willing to include the evolution's consequences of the surrounding system in the FU lifecycle, at the cost of much-increased complex analysis. The trend is to employ CLCA when dealing with long-term analyses: referring to the construction sector, Almeida et al (2020) retrieved 13 out of 25 works (10 with no information) referring to a long-term time horizon. Life Cycle Thinking (LCT) and LCA are essential for informing decisions comprehensively and holistically in both business and policy contexts (Reale et al, 2017).…”

Section: Alca and Clamentioning

confidence: 99%

A Dynamic Approach for Life Cycle Assessment. The Case of Domestic Refrigerators

2023

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The Life Cycle Assessment is a well-stated methodology whose application has recently spread over a multitude of sectors. Thus the need for very accurate and reliable analysis. The present work investigates how to achieve reliable and faithful results while still maintaining a micro-systemic approach and how to handle the evolution of the real cases through commercial solutions available. The works present an innovative dynamic approach that aims at filling the discrepancy between the attributional Life Cycle Assessment which is focused on the product at the point to appear short-sighted and isolated from the surrounding evolving system and the consequential, which is willing to include the consequences of the evolution of the surrounding system, with increased complexity. The approach is applied to the case of a domestic refrigerator; the application reveals a discrepancy of 16% between the results of the dynamic and attributional analysis and registered doubled environmental impacts than the consequential, carried out with the support of commercial datasets. The approach respects the 5 main criteria for methods in environmental systems analysis, namely feasibility, accuracy, easiness in communication, inspiration, robustness.

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“…This research work develops an approach that consists in coupling the Life Cycle Assessment (LCA) methodology with a macro-economic Stock-Flow Consistent model (SFC). The choice for using an SFC model is justified by a previous review on the economic models used in consequential assessments [9].…”

Section: Introductionmentioning

confidence: 99%

Environmental consequences of policies in construction sector: combining economic simulation with consequential LCA

et al. 2022

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Consequential Life Cycle Assessment (CLCA) can be particularly relevant for studying the changes proposed by new policies since they may result in important displacements of environmental, social and economic impacts. For example, the financial aids for encouraging the use of new technologies may increase the demand for some materials of which production is constrained and the marginal suppliers may be more impacting than the average ones. The goal of this project was to propose a method for calculating the potential environmental burdens and benefits from new policies in the construction sector. Consequential Life Cycle Inventory must include all processes that are actually affected by the studied changes, considering the market effects. The economic models can be helpful on this matter. The proposed method couples a Stock-Flow Consistent (SFC) to the CLCA methodology to obtain the flows and stocks that are affected by the new policy. The model goes further in order to obtain the second-order effects, i.e., the monetary redistribution effects resulting from an economic perturbation. The main result is a novel method that couples an SFC model to CLCA. It is tested in a case study where the evolution of carbon tax in France (economic shock) leads to an increase in thermal retrofitting works in the French existing built stock. These results may help the construction sector to anticipate important rebound effects that are not usually included in the current studies used for decision and policy-making.

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Economic models used in consequential life cycle assessment: a literature review

Cited by 12 publications

References 26 publications

Circularity and LCA - material pathways: cascade potential and cascade environmental impact of an in-use building product

Circularity and LCA - material pathways: cascade potential and cascade environmental impact of an in-use building product

A Dynamic Approach for Life Cycle Assessment. The Case of Domestic Refrigerators

Environmental consequences of policies in construction sector: combining economic simulation with consequential LCA

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