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Research Output

lourim | Louvain-la-Neuve, Mons

The research output of the Candriam Chair consists mainly of the production of research articles highlighting different aspects of the circular economy. You will find here the articles resulting from the research carried out within the Chair, as well as the conferences at which they have been presented.

 

Exploring the Diversity of Circular Business Models: Towards a Classifier-Centric Model

Josep Oriol Izquierdo Montfort and Yves De Rongé

In integrating different circular economy principles in their business model, companies implement a diverse array of strategic initiatives, resulting in a multitude of circular business models (CBMs). Academic research has sought to classify these models, developing various typologies and taxonomies, instrumental for theorisation and creating mid-level theories. This article conducts a critical review of academic research and identifies 32 distinct CBM classification schemas and 241 CBM classes. Our analysis reveals three common shortcomings impeding robust and effective classifications: (1) the use of unclear classification criteria, (2) the use of commonly used CBM terms with significant variations in meaning, (3) the inaccurate use of the terms 'taxonomy', 'typology' and other related terms blurring their distinctions. In addition, we contribute by providing a glossary with the 15 more frequent CBM terms, together with their definitions and relevant remarks, enhancing a shared understanding within the academic discourse. Finally, we propose a flexible classifier-centric model with 16 classification criteria allowing for the construction of different classification schemas depending on the classifier’s aim. This article contributes to enhance the clarity, coherence, and applicability of CBM classifications and classes, ultimately facilitating a more comprehensive understanding of CBMs benefiting both research and practice, and proposing further research avenues.

Josep Oriol Izquierdo Montfort and Yves De Rongé

Transitioning to a circular economy offers an alternative to the current linear model. Research on circular business models is growing but remains at a nascent stage, leaving a gap in understanding how individual firms transition towards circularity. Using a business model innovation perspective, this article analyses how firms adopt circular economy practices and their interrelations, introducing a three-step process to analyse circular business model innovation (CBMI). From a sample of 63 cases, we identify 46 managerial practices in the three value dimensions of a business model, aimed at maximizing resource value retention. Our study proposes five CBMI patterns, consisting of combinations of practices to reshape one or more dimensions of a business model integrating circular principles. By integrating theoretical insights with practical observations, this study contributes by proposing a comprehensive three-step approach to analyse CBMI, and providing practices and actionable patterns for the successful transition to circular business models.

Josep Oriol Izquierdo Montfort, Yves De Rongé, James De Rongé, Özgür Arslan Ayaydin and Sébastien Wilmet

The necessity of limiting firms' environmental impacts has driven the adoption of circular economy models. Despite its importance, there is no clear mapping of the circular strategies used by companies and their financial impacts on firm value. Analysing over 2,000 ESG reports from 2007 to 2020, we identify these strategies and their effect on firm value. We show a growing emphasis on the circular economy, and a prominence of specific circular strategies, particularly recycling, reducing, and reusing. We further find that disclosing these strategies generally decreases firm value. However, when disaggregating the umbrella concept of the circular economy, differences emerge. Long-loop strategies increase value, medium-loop strategies decrease it, and short-loop strategies have no significant effect. We also show that the impact of circular economy strategies is stronger after the Paris Agreement, and for firms in Democratic states. Overall, this study offers the first comprehensive mapping of U.S. circular strategies and their financial materiality.

Latest publications

  • 2024
    • Conference paper
      Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Decoding Circular Business Models: A Study of Terminological Foundations in Classification Schemas. 9th International Conference on New Business Models. Sustainable business models for the digital, green and inclusive transition (Mondragon University, Donostia, Spain, du 04/07/2024 au 05/07/2024). doi:10.48764/kgk7-va07.
    • Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Exploring the Diversity of Circular Business Models: Towards a Classifier-Centric Model . EURAM 2024. Fostering innovation to address grand challenges (University of Bath, United Kingdom, du 24/06/2024 au 28/06/2024).
    • Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Towards an integrated classification of circular business models: combining circular and supply chain criteria. EurOMA 2024. Transforming people and processes for a better world (ESADE Business School, Barcelona, Catalunya, du 01/07/2024 au 04/07/2024).
    • Working paper
      Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Exploring the diversity of circular business models: Towards a classifier-centric model (LouRIM Working Paper Series; 2024/07), 2024. 40 p.
  • 2023
    • Conference paper
      Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Circular Business Model Innovation: Identifying Practices and Patterns. New Business Model Conference 2023: "Building partnerships for more sustainable, resilient and regenerative business models" (Maastricht University, du 21/06/2023 au 23/06/2023).
    • Izquierdo Montfort, Josep Oriol.
      Comparison of classification methods for Circular Business Models. New Business Models Conference 2023: “Building Partnerships for more Sustainable, Resilient and Regenerative Business Models” (Maastricht University, The Netherlands, du 21/06/2023 au 23/06/2023).
    • Working paper
      Izquierdo Montfort, Josep Oriol ; De Rongé, Yves.
      Circular Business Model Innovation: Identifying practices and patterns (LouRIM Working Paper Series; 2023/11), 2023. 38 p.

Main conferences attended