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- Yseult Marique
Yseult Marique
Chargée de cours invitée
Professeure
Yseult is a Professor in the Law of Public Finances at the UC Louvain and a Professor of Law at Essex Law School (UK).
Yseult holds a PhD from Cambridge (2011), law degrees from the (then) Facultés Universitaires Saint-Louis (Candidatures bilingues FR/NL), the Université libre de Bruxelles (Licences with Erasmus in Rotterdam) and the Vrije Universiteit Brussels (Licenciaat notariaat) and a masters in contemporary ethics (Anglia Ruskin). She is a research associate at the Centre de droit Public of the ULB (2009-) and the Centre Montesquieu d'Etudes de l'Action Publique (2022-). From 2016 to 2023, she was a Fellow of the Deutsches Forschungsinstitut für Öffentliche Verwaltung (Speyer).
Yseult sits in the editorial board of REALaw and in the advisory boards of comparative and European law journals (European Public Law, Hungarian Yearbook of International Law and European Law (2020-2025), Central European Public Administration Review (CEPAR), Droit Public Comparé - Comparative Public Law, and French Yearbook of Public Law).
Yseult is a member of the International Academy of Comparative Law, a member of the European Group of Public Administration where she acts as a co-lead for the Law and Administration stream, a member of the Group of Independent Experts on the European Charter on Local Self-Government (Council of Europe) and a fellow of the Westminster Abbey Institute.
Yseult welcomes inquiries for doctoral supervision and for supporting applications to the MCSA post-doctoral fellowship.
- Diplômes
Année Label Institution 1999 Licence en droit Universite libre de Bruxelles 2004 Licenciaat in notariaat Vrije Universiteit Brussel 2011 PhD Cambridge
Yseult develops her academic expertise in two main legal fields, with a keen interest for interdisciplinary collaboration and input from history, ethics, economics/organisational theories and political philosophy.
1/ Law of public finances at all levels of governance (international, European, national, local)
In this domain, Yseult is one of the founding members of the Research Network on Public Authorities in Financial Distress. With Eugenio Vaccari, Laura Coordes and Geo Quinot, she is the co-author of a forthcoming book on Municipalities in Financial Distress : A ESG Critique (with Edward Elgar 2025). With Eugenio Vaccari, she is co-editing a book on Local Government and the Territorial Constitution – Social Justice and Local Finances in the UK (with Bristol University Press 2026, open access). She is currently editing a special issue on solidarity in times of crisis at EU level with Professor Konstadinides and Dr Küçük for the Maastricht Journal of European and Comparative Law. Her book Public Private Partnerships and the Law (Edward Elgar 2014) was shortlisted for the 2015 Birks Prize from the Society of Legal Scholars (UK).
An on-going project includes a Commentary of the EU Directive on classic procurement (with Professors Wauters and Coutron, French, Larcier, planned publication 2026).
Yseult's approach to the law of public finances builds on her keen interest for public economic law and the allocation of scarce resources (such as money, soil, water or clean air), and she is interested in how public entities spend taxpayers' money for the public good through big infrastructure projects (eg water infrastructures) or how they collect money in innovative ways to sustain their activities. In particular, the borderline between public finances and coercion is one of the lines of inquiry she pursues both at EU and at local levels. She connects this question to the tensions that can arise in the realm of social justice, especially between enforcing public policies and ethics of care. In addition, a reflection on the different conceptions that decision-makers of the time and space dimensions of their decisions and investments enriches her teaching and research.
2/ Comparative public law in Europe
Yseult develops a strand of research pertaining to comparative public law in Europe thanks to her participation in international projects, such as the one led by Professor della Cananea on the common core of European administrative law, by Professor Stelkens on the pan-European principles of good administration, or by Professor de la Rosa on the principles of public procurement. She authored the entry on administrative courts in the Edward Elgar Encyclopedia of Comparative Law, a chapter on administrative justice and the rule of law in the Oxford Handbook on Administrative Justice, a chapter on judges and the Belgian Constitution in the forthcoming Oxford Handbook on Belgian politics (with Frederic Bouhon). She is contributing entries to the Edward Elgar Encyclopedia on Local Government (forthc) and a chapter on the Belgian civil service (with Emmanuel Slautsky) in the forthcoming Routledge Handbook on the Civil Service, following her entries on the Belgian constitution and the civil service in the Max Planck Encyclopedia of Constitutional Comparative Law. She also co-authored an overview of comparative administrative law with Professor Eliantonio for the Maastricht Journal of European and Comparative Law and is contributing a chapter comparing the European Union and the Council of Europe for Comparative Administrative Law - New Voices (edited by Peter Lindseth et al, Edward Elgar forthcoming) with Professor Stelkens. She co-edited a special issue of the journal REALaw on resistance to transplants in the administrative space (with Professor Slautsky).
On-going projects include the updating and expansion of the second edition of the Casebook on Texts and Materials - Judicial Review of Administrative Action (two volumes, with Prof Eliantonio - Hart, forthc 2026/27), the co-edition of the Handbook on the Functions and Practice of Good Administration in the Council of Europe (two volumes, with Prof Stelkens, Brill, forthc 2026), and a co-edited collection on transnational administrative law (Larcier with E Chevalier, O Dubos and JB Auby forthc).
Yseult is especially interested in differentiation processes, narratives, linguistic mapping and cognitive mindsets across legal and administrative epistemic communities. She explores these matters in specific administrative law related-topics such as principles of judicial review, procurement, effective judicial protection, ethical standards in the civil service, bias, climate change and intertemporal equity.
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Yseult welcomes inquiries for doctoral supervision and for supporting applications to the MCSA post-doctoral fellowship.
2024
Marique, Yseult. Budget Conditionality Judgments – A Virtuous Circle of Solidarity to Overcome Moral Hazard?. In: Maastricht Journal of European and Comparative Law, (2024) (Accepté/Sous presse).
2024
Marique, Yseult. Comparative administrative law in Europe: state-of-the-art overview and research agenda. In: Maastricht Journal of European and Comparative Law, (2024). doi:10.1177/1023263X241252105.
2023
Marique, Yseult. 'Transnational Climate Change Law – A Case for Reimagining Legal Reasoning?. In: French Yearbook of Public Law, Vol. 1, no.1, p. 69 (2023).
2023
Rizcallah, Cécilia ; Marique, Yseult. Article 47 of the Charter of Fundamental Rights: A Fruitful Tree Growing in the Belgian Landscape of Judicial Protection. In: REALaw.blog, Vol. 1, no.1, p. 1 (2023).
2023
Marique, Yseult. Toward a Model Law for the Treatment of Distressed Local Public Entities. In: Chicago-Kent Journal of International and Comparative Law, Vol. 98, no.2 (2023) (Accepté/Sous presse).
2023
Marique, Yseult. ‘Collectivity and Equality (Pari Passu) in the Treatment of Local Public Entities in Distress’ . In: International Insolvency Review : journal of the international association of insolvency professionals, Vol. 32, p. 93 (2023). doi:10.1002/iir.1494.
2022
Marique, Yseult. 'The Politicisation of the UK Civil Service: Causes, Manifestations and Evolutions’. In: Revista Catalana de Dret Public, Vol. 65, p. 93-111 (2022). doi:10.2436/rcdp.i65.2022.3879.
2022
Marique, Yseult. Le principe de légalité en droit administratif anglais - Un concept "flou" face aux transformations de l’action administrative. In: Revue Française de Droit Administratif, Vol. 2, no.5, p. 241 (2022).
2021
Marique, Yseult. Resistance to Transplants in the European Administrative Space - An Open-Ended Reading of Legal Changes. In: Review of European Administrative Law, Vol. 14, no.1, p. 7-36 (2021) (Soumis).
2019
Marique, Enguerrand ; Marique, Yseult. Sanctions on digital platforms: Balancing proportionality in a modern public square. In: Computer law and security review, Vol. 35, no. 7, p. 13 (2020). doi:10.1016/j.clsr.2019.105372.
2019
Marique, Enguerrand ; Marique, Yseult. Sanctions on digital platforms: beyond the public–private divide. In: Cambridge International Law Journal, Vol. 8, no.2, p. 258-281 (2019). doi:10.4337/cilj.2019.02.05.
2018
Marique, Yseult ; Wauters, Kris. La lutte contre le dumping social dans la sous-traitance de marchés publics. In: Marchés et contrats publics, no. 1, p. 59-90 (2018).
2018
Marique, Yseult ; Steven Van Garsse. Public-private cooperation and judicial review: A case study drawn from European infrastructure projects. In: European Public Law, Vol. 24, no.3, p. 515 (2018).
2025
Marique, Yseult ; Vaccari Eugenio ; Quinot Geo ; Coordes Laura. Municipalities in Financial Distress: An Environmental, Social and Governance Critique , Edward Elgar, 2025. 103531990X (Accepté/Sous presse).
2016
EU Directive 2014/24 on public procurement. A new turn for competition in public markets ?, éd. Wauters, Kris ; Marique, Yseult (Marchés et contrats publics – Overheidsopdrachten –en overeenkomsten – Dossiers), Larcier: Bruxelles, 2016. 9782804490454. 230 p.
2014
Marique, Yseult. Public–Private Partnerships and the Law. Regulation, Institutions and Community, Edward Elgar: Cheltenham, 2014. 9781781004555. doi:10.4337/9781781004555.
2025
Marique, Yseult. Comparing International and Supranational European Administrative Law – A Tale of Two Europes. In: Comparative Administrative Law – New Voices, Peter Lindseth, 2025 (Soumis).
2024
Marique, Yseult. The Civil Service in Belgium between Fragmentation and Common Principles. In: European Civil Service, Routledge, 2024 (Soumis).
2023
Marique, Yseult. Administrative Courts. In: Jan M. Smits, Jaakko Husa, Catherine Valcke, Elgar Encyclopedia of Comparative Law, 2023. 9781839105593. doi:10.4337/9781839105609.courts.
2023
Rizcallah, Cécilia ; Marique, Yseult. Article 47 of the EU Charter of Fundamental Rights A Fruitful Tree Growing in the Belgian Landscape of Judicial Protection. In: Mariolina Eliatino, Guilia Gentile, Matteo Bonnelli, Article 47 of the EU Charter and Effective Judicial Protection Volume 2: The National Courts’ Perspectives, Bloomsburry: Oxford, 2023, 7 - 28. 9782802767008.
2023
Marique, Yseult. Ethical standards between law and politics. In: Gromek-Broc, K. (Ed.), Liber Amicorum Patrick Birkinshaw, 2023. 9789403541068.
2023
Marique, Yseult. La responsabilité financière des gestionnaires publics en Angleterre – Vers une culture administrative répressive?. In: Damarey, Stéphanie, Responsabilité financière des gestionnaires publics - Approches internationales, Mare et Martin, 2023. 978-2-84934-713-3.
2022
Marique, Yseult. Administrative Justice and the Rule of Law. In: Marc Hertogh (ed.), Richard Kirkham (ed.), Robert Thomas (ed.), Joe Tomlinson (ed.), The Oxford Handbook of Administrative Justice, 2022. 9780190903091. doi:10.1093/oxfordhb/9780190903084.013.16 (Soumis).
2022
Marique, Yseult. Les missions de contrôle de l'administration de l'Union européenne. In: Jean-Bernard Auby & Jacqueline Dutheil de la Rochère, Traité de droit administratif européen, 2022. 9782802764281.
2022
Marique, Yseult. ‘Collateral challenge in England and Wales: More questions than answers’. In: Drago, D. and Eliantonio, M., Indirect Review in Europe, 2022. 9781003164302.
2022
Marique, Yseult. ‘Legal, economic and managerial principles in English public contracts – Degrees in normativity and effectiveness’. In: Stéphane de La Rosa, Patricia Valcarcel Fernandez, General Principles of Public Contracts in Europe, 2022. 9782802767633.
2021
Marique, Yseult. The Administration and the Judge: Pragmatism in Belgian Case Law (1890–1910). In: Giacinto della Cananea et Stefano Mannoni (eds), Administrative Justice "Fin de siècle". Early judicial standards of administrative conduct in Europe (1890-1910), Oxford University Press: Oxford, 2021. 9780198867562. doi:10.1093/oso/9780198867562.003.0003.
2020
Marique, Yseult. Belgian Pluralism and Pragmatism - Shared Principles in a Strained Relationship. In: Ulrich Stelkens et Agnė Andrijauskaitė, Good administration and the council of Europe: law, principles, and effectiveness, Oxford University Press, 2020. 0-19-886153-2.
2020
Marique, Enguerrand ; Marique, Yseult. Power beyond the public-private divide on digital platforms. After laissez-faire, time for organised checks and balances. In: Bani, E.; Pachuca-Smulska, B.; Rutkowska-Tomaszewska, E., Public and Private Law and the Challenges of New Technologies and Digital Markets. Volume I. Regulatory Challenges (Monografie Obcojęzyczne ), CH Beck: Warsaw, 2020, p. 129-152. 978-83-8198-070-8.
2019
Wauters, Kris ; Marique, Yseult. The fight against social dumping in the subcontracting of Belgian public procurement. In: Marcel Szabo, Petra Lea Lancos, Reka Varga (eds.), Hungarian Yearbook of International and European Law 2018, Eleven Internationbal Publishing, 2019, p. 403-436. 9789462369535.
2018
Marique, Enguerrand ; Marique, Yseult. Uber in London: A battle between public and private regulation. In: Rozen Noguellou, David Renders (eds.), Uber & Taxis (Comparative Law Studies), Bruylant: Bruxelles, 2018, p. 163-202. 9782802762263.
2014
Marique, Yseult. Integrity in English and French public contracts: Changing administrative cultures?. In: Jean-Bernard Auby, Emmanuel Breen et Thomas Perroud, Corruption and conflict of interest, 2014, 85-112. 9781781009345.
2021
Rizcallah, Cécilia ; Marique, Yseult. Article 47 of the EU Charter of Fundamental Rights A Fruitful Tree Growing in the Belgian Landscape of Judicial Protection. Workshop: Article 47 of the EU Charter and effective judicial protection (Maastricht University (Online), du 24/09/2021 au 25/09/2021).
2021
Rizcallah, Cécilia ; Marique, Yseult. L'article 47 de la Charte des droits fondamentaux dans l'ordre juridique belge. Midi du CIRC (Online, 11/06/2021).
2019
Marique, Enguerrand ; Marique, Yseult. Sanctions on platforms beyond the public/private divide. 8th Annual Cambridge International Law Conference: 'New Technologies: New Challenges for Democracy and International Law (Cambridge, UK, du 20/03/2019 au 21/03/2019).
2019
Marique, Enguerrand ; Marique, Yseult. Sanctions on platforms: a test case for balancing legal and social norms in individualized decisions. 2019 Internet Governance Forum (Berlin, du 25/11/2019 au 28/11/2019).
2018
Marique, Enguerrand ; Marique, Yseult. Conceptualizing powers on platforms beyond the public / private divide. Public Law and the Challenges of New Technologies and Digital Markets (Bergame, Italie, 26/09/2018).
2022
Marique, Yseult. Local Public Entities in Distress: A Global Study, 2022.