Martins Paparinskis

Martins Paparinskis

LLB (University of Latvia); MJur, DPhil (Oxon)

Reader in Public International Law

+44 (0)20 3108 8365

Martins Paparinskis joined UCL Faculty of Laws in September 2013. Prior to this, he was a Junior Research Fellow at Merton College Oxford (2010-2013) and a Hauser Research Scholar at the New York University (2009-2010). He took an LL.B. from the University of Latvia, before coming to the UK to take his M.Jur. (with Clifford Chance Prize) and D.Phil. from the University of Oxford. In 2016, he received UCL Laws Excellence Award for Legal Teaching (EXALT): Graduate. He has been a Visiting Senior Fellow at the National University of Singapore.

Martins is the Book Review Editor of Journal of World Investment and Trade and a member of the Academic Review Board of Cambridge International Law Journal, the Editorial Board of Journal of the University of Latvia. Law, the International Law Association’s Committee on the Rule of Law and International Investment Law, and the International Law Association’s Study Group on the Use of Domestic Law Principles for the Development of International Law. He has been a member of the International Law Association’s Committee on Non-State Actors.

Martins is a member of the Council of Independent Experts in International and European Law with the Minister of Foreign Affairs of Latvia, the Panel of Arbitrators of the International Centre for Settlement of Investment Disputes, the Permanent Court of Arbitration, and the Management Board of the European Union Fundamental Rights Agency.


Martins is a generalist international lawyer with a variety of specialist interests. He has published and spoken on generalist topics, such as law of treaties, State responsibility, and international dispute settlement, as well as on topics in the subfields of international investment law, international trade law, and international human rights law.

View Martins’ research profile on the UCL IRIS website

Publications List

Peer-reviewed articles



  • With Maurice Mendelson, ‘Bail-ins and International Investment Law: in and beyond Cyprus’ in R Hofmann, S Schill, and C Tams (eds), International Investment Law and the Global Financial Architecture (Edward Elgar 2017)
  • ‘Masters and Guardians of International Investment Law: How the Play the Game of Reassertion’ in A Kulick (ed), Reassertion of Control over the Investment Treaty Regime (Cambridge University Press, Cambridge 2016)
  • With Jessica Howley, ‘Article 5’ in D Euler, M Gehring, and M Scherer (eds), Transparency in International Investment Arbitration (Cambridge University Press, Cambridge 2015)
  • ‘Good Faith and Fair and Equitable Treatment in International Investment Law’ in A Mitchell, M Sornarajah, and T Voon (eds), Good Faith and International Economic Law (Oxford University Press, Oxford 2015)
  • ‘The Schizophrenia of Countermeasures in International Economic Law: the Case of the ASEAN Comprehensive Investment Agreement’ in C Lim and B Mercurio (eds), International Economic Law after the Global Crisis: A Tale of Fragmented Disciplines (Cambridge University Press, Cambridge 2015)
  • ‘Regulating Treaties: A Comparative Perspective’ in C Tams, A Tzanakopoulos, and A Zimmermann (eds), Research Handbook on the Law of Treaties (Edward Elgar 2014)
  • ‘Analogies and Other Regimes of International Law’ in Z Douglas, J Pauwelyn, and JE Viñuales (eds), The Conceptual Foundations of International Investment Law: Bridging Theory into Practice (Oxford University Press, Oxford 2014)
  • ‘Latvia’ in C Brown (ed), Commentaries on Selected Model International Investment Agreements (Oxford University Press, Oxford 2013)
  • ‘Inherent Powers of ICSID Tribunals: Broad and Rightly so’ in I Laird and T Weiler (eds), Investment Treaty Arbitration and International Law (Volume 5, JurisNet, LLC, New York 2012)
  • ‘Sources of Law and Arbitral Interpretations of Pari Materia Investment Protection Rules’ in OK Fauchald and A Nollkaemper (eds), The Practice of International and Nationals Courts and the (De-)Fragmentation of International Law (Hart Publishing, Oxford 2012)
  • ‘Equivalent Primary Rules and Differential Secondary Rules: Countermeasures in WTO and Investment Protection Law’ in T Broude and Y Shany (eds), Multi-Sourced Equivalent Norms (Hart Publishing, Oxford 2011)
  • ‘Investment Treaty Interpretation and Customary Law: Preliminary Remarks’ in C Brown and K Miles (eds), Evolution in Investment Treaty Law and Arbitration (Cambridge University Press, Cambridge 2011)
  • ‘Regulatory Expropriation and Sustainable Development’ in MW Gehring, M-C Cordonnier-Segger and A Newcombe (eds), Sustainable Development in International Investment Law (Kluwer Law International, The Hague 2010)

Other (non-peer reviewed articles, book reviews, case notes, encyclopaedia entries, blog posts)




International Law of Foreign Investment (LAWSG088): Convenor

Law and Policy of International Courts and Tribunals (LAWSG076): Convenor

PhD Supervision

Murilo Lubambo De Melo (co-supervisor)

Ira Ryk-Lakhman (principal supervisor)

Alex Green (subsidiary supervisor)

Ed Robinson (subsidiary supervisor)

Martins welcomes approaches for supervision from prospective PhD students.