Collaborative economy

Collaborative economy refers to marketplaces that provide access to goods, services or skills through Peer-to-Peer exchanges. NADI explores the economic, technological and societal/environmental impacts of such exchanges.



The sharing economy or collaborative society is a new paradigm developing very rapidly where using a good or a service prevails over its ownership. Such an access-based approach is supported by societal, economic and technological facilitators.

A report by PwC predicts that 5 key sharing sectors (P2P finance, online staffing, P2P accommodation, car sharing and music/video streaming) have the potential to increase global revenues from 15 billion USD in 2014 to 335 billion USD by 2025.

NADI investigates a series of issues related to this emerging collaborative economy/society, including the technical functioning of the P2P platforms enabling providers and users to share or exchange goods and services in a secure and privacy- aware way; the psychological processes (motivations, attitudes, emotions etc.) underlying the adoption of collaborative initiatives; the extent to which technical, informational and social competences are mobilized by users; the legal rules applied to users and platforms in the sharing economy (in particular, consumer protection, labour law, and competition law).


Key publications

  • P. Alexiadis and A. de Streel (2020), Designing an EU Intervention Standard for Digital Platforms (with), EUI Working Paper-RSCAS 2020/14.
  • M. Buiten., A. de Streel and M. Peitz (2020), Rethinking Liability Rules for Online Hosting Platforms (with), International Journal of Law and Information Technology 28, 139-166
  • J.-N. Colin, J-N. (2020). Du Bitcoin aux DAO : les fondations techniques de la blockchain. In Les blockchains et les smart contracts à l'épreuve du droit (Larcier). 9--29.
  • A. Decrop (Ed.) (2017). La consommation collaborative: Enjeux et défis de la nouvelle société du partage. De Boeck.
  • A. Decrop, G. Del Chiappa, J. Mallargé and P. Zidda (2018). ``Couchsurfing has made me a better person and the world a better place'': the transformative power of collaborative tourism experiences. Journal of Travel \& Tourism Marketing, 35(1), 57-72.
  • A. Decrop and A. Graul (2019). The Role Of System Trust And Risk Perception In Providing Assets For Collaborative Consumption Schemes. Journal of Management for Global Sustainability, 7(1).
  • H. Jacquemin. Les plateformes de l'économie collaborative à l'épreuve du droit des obligations et des règles de protection des consommateurs. Enjeux et défis juridiques de l'économie de plateforme, CUP, Limal, Anthemis, 2019, pp. 85-136.
  • H. Jacquemin, Consumers contracting with other consumers in the sharing economy: fill in the gaps in the legal framework or switch to the blockchain model. IDP, Revista de Internet, Derecho y Política, 2019/28, pp. 44-55.
  • J. Mallargé, A. Decrop and P. Zidda (2019). Revisiting satisfaction with collaborative exchanges in the sharing economy. In Handbook of the Sharing Economy. Edward Elgar Publishing.
  • J. Mallargé, P. Zidda and A. Decrop (2017). Typologie des pratiques et profil des consommateurs collaboratifs. Consommation collaborative: Enjeux et défis de la nouvelle société du partage, dir. Alain Decrop, DeBoeck Supérieur, Louvain la Neuve, 55-84.
  • K. Sok, J.-N. Colin, and K. Po (2018). Blockchain and Internet of Things Opportunities and Challenges. In Proceedings of the Ninth International Symposium on Information and Communication Technology (SoICT 2018), ACM, New York, NY, USA, 150--154.
  • A. de Streel and M. Husovec (2020), The e-commerce Directive as the cornerstone of the Internal Market, Study for the European Parliament.
  • A. de Streel, A. Kuczerawy and M. Ledger (2019) Online Platforms and Services (with, in Electronic communications, Audiovisual Services and the Internet: EU Competition Law and Regulation, 4th ed., Sweet \& Maxwell, 125-157.


Key projects

  • ARCCIS (Assessment and Reinforcement of the Regulatory Compliance of an Information System) : In-company PhD. grant, starting in March 2020.
  • Ccschemes (2018): What drives consumers to provide goods in collaborative consumption schemes? The role of market mediation and reciprocation.
  • SABSpinOff: Based on a collaboration between MARO (UMons, Jean-Marc Godart and Daniel Tuytens) and CeRCLe (UNamur, Jérôme Mallargé and Pietro Zidda), this project includes a 6-month research grant from the Walloon Region (Aug. 2018 - Jan. 2019) to develop a proof of concept for the ShareABike bike sharing system.
  • ShareABike: Based on a collaboration between MARO (UMons, Jean-Marc Godart and Daniel Tuytens), Naxys (UNamur, Eric Cornelis and Timoteo Carletti) and CeRCLe (UNamur, Jérôme Mallargé and Pietro Zidda), this project includes a 3-year research grant from the Walloon Region (Oct. 2014 - Sept. 2017) to study and develop a new generic and smart system of bike sharing.


Contact: Alain Decrop