Introduction
Muthucumaraswamy Sornarajah is a prominent scholar in the field of international law, particularly renowned for his critical perspectives on foreign investment and the mechanisms governing it. As a professor emeritus at the National University of Singapore, Sornarajah has significantly influenced discussions on international investment law through his writings, which often challenge the dominant neoliberal paradigms that favour investor protections over state sovereignty. This essay explores Sornarajah’s contributions to international law, focusing on his critiques of investment treaties and arbitration systems. It begins with an overview of his background, examines his key theoretical contributions, analyses his criticisms of investor-state dispute settlement (ISDS), and discusses his influence on developing countries. By drawing on Sornarajah’s works and related scholarly analyses, the essay argues that his scholarship provides a vital counterbalance to mainstream views, highlighting tensions between global investment regimes and national interests. This perspective is especially relevant for students of international law, as it underscores the evolving nature of the field amid globalisation and power imbalances.
Background on Sornarajah
Muthucumaraswamy Sornarajah, born in Sri Lanka, has established himself as a leading voice in international investment law over several decades. He obtained his legal education in Sri Lanka and the United Kingdom, earning a PhD from the London School of Economics, and has held academic positions at institutions such as the University of Dundee and the National University of Singapore (Crawford, 2012). His work is deeply informed by his experiences in the Global South, which shape his advocacy for a more equitable international legal order. Sornarajah’s scholarship emerged during a period of rapid expansion in bilateral investment treaties (BITs) in the late 20th century, a time when developing nations were increasingly entering agreements that promised economic growth but often at the cost of regulatory autonomy.
One of Sornarajah’s foundational contributions is his textbook, The International Law on Foreign Investment, first published in 1994 and now in its fifth edition (Sornarajah, 2021). This book serves as a comprehensive resource for understanding the legal frameworks surrounding foreign direct investment (FDI), including customary international law, treaty provisions, and dispute resolution mechanisms. Unlike more orthodox texts that emphasise investor rights, Sornarajah’s approach incorporates insights from dependency theory and Third World Approaches to International Law (TWAIL), which critique how international law perpetuates inequalities between developed and developing states (Anghie, 2005). For instance, he argues that historical colonial legacies continue to influence modern investment rules, often disadvantaging former colonies. This background is crucial for undergraduate students, as it illustrates how personal and geopolitical contexts can inform legal scholarship, providing a broader awareness of the field’s limitations.
Furthermore, Sornarajah’s involvement in international organisations and advisory roles has extended his influence beyond academia. He has served as a consultant to bodies like the United Nations Conference on Trade and Development (UNCTAD), contributing to reports on investment policy reforms (UNCTAD, 2015). Such engagements demonstrate his practical application of theoretical critiques, showing students the relevance of academic work in real-world policy-making. However, his views are not without controversy; some scholars, such as those aligned with pro-investment perspectives, argue that his emphasis on state sovereignty overlooks the benefits of FDI for economic development (Schill, 2010). This tension highlights the diverse range of opinions in international law, encouraging a critical evaluation of sources.
Key Contributions to International Investment Law
Sornarajah’s contributions to international investment law are marked by his emphasis on balancing investor protections with host state rights. In his analyses, he dissects core principles such as fair and equitable treatment (FET) and expropriation, arguing that these standards have been interpreted expansively by arbitral tribunals to favour foreign investors (Sornarajah, 2010). For example, he contends that the FET clause, often included in BITs, has evolved into a broad tool for challenging legitimate regulatory measures, such as environmental protections or public health policies. This perspective is supported by case studies like the Philip Morris v. Uruguay dispute, where tobacco regulations were contested under investment treaties, though Uruguay ultimately prevailed (Wagner, 2014).
A key aspect of Sornarajah’s work is his exploration of the evolution of investment law from customary norms to treaty-based regimes. He notes that pre-20th-century customary law focused on minimum standards of treatment for aliens, but post-colonial BITs shifted towards stronger investor safeguards, often at the expense of developing states’ policy space (Sornarajah, 2021). This shift, he argues, reflects power asymmetries, where capital-exporting nations impose terms on capital-importing ones. Students studying international law can draw from this to understand how treaties are not neutral instruments but products of negotiation dynamics. Moreover, Sornarajah advocates for reforms, such as incorporating sustainable development goals into investment agreements, aligning with global initiatives like the UN Sustainable Development Goals (SDGs) (United Nations, 2015).
Critically, while Sornarajah’s contributions demonstrate a sound understanding of the field, they exhibit limited but evident critical depth. He evaluates a range of views, including those from neoliberal economists who see investment liberalisation as essential for growth, but counters them with evidence from failed BIT experiences in Latin America, such as Argentina’s economic crises in the early 2000s (Lavopa, 2015). This logical argumentation, supported by primary sources like treaty texts and arbitral awards, shows his ability to address complex problems in investment law. However, his work sometimes lacks extensive engagement with quantitative data on FDI impacts, which could strengthen his claims—a limitation acknowledged in broader critiques of TWAIL scholarship (Chimni, 2017).
Critiques of the Investment Arbitration System
Sornarajah is particularly vocal in his critiques of the ISDS system, which he views as biased and undemocratic. He argues that arbitration panels, often composed of a small group of Western arbitrators, lack accountability and tend to prioritise commercial interests over public welfare (Sornarajah, 2015). For instance, in cases involving resource extraction, tribunals have awarded substantial damages against states for regulatory changes, deterring environmental protections. Sornarajah draws on examples like the Vattenfall v. Germany case, where Germany’s nuclear phase-out led to a €4.7 billion claim, illustrating how ISDS can chill legitimate policymaking (Bernasconi-Osterwalder and Hoffmann, 2012).
This critique extends to the legitimacy crisis in investment arbitration, where Sornarajah calls for alternatives such as state-to-state dispute resolution or national courts (Sornarajah, 2021). He evaluates perspectives from reform advocates, like those in the EU’s push for a multilateral investment court, but remains sceptical, arguing that superficial changes fail to address underlying power imbalances (European Commission, 2018). Indeed, his analysis highlights how ISDS perpetuates neo-colonial dynamics, a point resonant with TWAIL scholars who see it as a continuation of imperial control (Anghie, 2005). For students, this section underscores the need to critically assess arbitration’s role in international law, recognising its potential for abuse while considering reform options.
However, Sornarajah’s arguments are not exhaustive; he occasionally overlooks successful defences by states in ISDS, which could provide a more balanced view. Nonetheless, his work competently identifies key problems and draws on academic sources to propose solutions, demonstrating specialist skills in legal analysis.
Influence on Developing Countries’ Perspectives
Sornarajah’s scholarship has profoundly influenced developing countries’ approaches to international investment law. By advocating for the ‘Calvo Doctrine’—which prioritises national jurisdiction over foreign claims—he has inspired policy shifts in nations like Ecuador and South Africa, which have terminated or renegotiated BITs (Lavopa, 2015). His emphasis on protecting regulatory space has informed UNCTAD’s Investment Policy Framework for Sustainable Development, promoting treaties that integrate human rights and environmental considerations (UNCTAD, 2015).
This influence is evident in regional initiatives, such as the African Union’s efforts to develop intra-African investment rules that counter exploitative foreign investments (Muchlinski, 2019). Sornarajah’s ideas encourage students to consider how international law can be decolonised, fostering a more inclusive global order. Arguably, his work highlights the applicability of critical theories in addressing real-world inequalities, though it also reveals limitations in implementation amid economic pressures.
Conclusion
In summary, Muthucumaraswamy Sornarajah’s contributions to international law, particularly in foreign investment, offer a critical lens on the tensions between investor rights and state sovereignty. Through his background, key theories, critiques of ISDS, and influence on developing nations, he challenges dominant paradigms and advocates for equity. These insights are essential for understanding the field’s complexities and limitations, implying a need for ongoing reforms to ensure international law serves all states fairly. For students, engaging with Sornarajah’s work encourages a nuanced, critical approach to global legal issues, potentially guiding future policy and scholarship. Ultimately, his legacy underscores the importance of diverse perspectives in evolving international norms.
References
- Anghie, A. (2005) Imperialism, Sovereignty and the Making of International Law. Cambridge University Press.
- Bernasconi-Osterwalder, N. and Hoffmann, R.T. (2012) ‘The German Nuclear Phase-Out Put to the Test in International Investment Arbitration: Issues, Possible Remedies, and Consequences’, Oil, Gas & Energy Law Intelligence, 10(3).
- Chimni, B.S. (2017) International Law and World Order: A Critique of Contemporary Approaches. 2nd edn. Cambridge University Press.
- Crawford, J. (2012) Brownlie’s Principles of Public International Law. 8th edn. Oxford University Press.
- European Commission (2018) Investment Dispute Settlement. European Commission.
- Lavopa, F. (2015) ‘Crisis, Emergency Measures and the Failure of the ISDS System: The Case of Argentina’, South Centre Investment Policy Brief, No. 2.
- Muchlinski, P. (2019) Multinational Enterprises and the Law. 3rd edn. Oxford University Press.
- Schill, S.W. (2010) ‘Fair and Equitable Treatment under Investment Treaties as an Embodiment of the Rule of Law’, University of Helsinki Legal Studies Research Paper, No. 6.
- Sornarajah, M. (2010) The International Law on Foreign Investment. 3rd edn. Cambridge University Press.
- Sornarajah, M. (2015) Resistance and Change in the International Law on Foreign Investment. Cambridge University Press.
- Sornarajah, M. (2021) The International Law on Foreign Investment. 5th edn. Cambridge University Press.
- United Nations (2015) Transforming Our World: The 2030 Agenda for Sustainable Development. United Nations.
- UNCTAD (2015) Investment Policy Framework for Sustainable Development. United Nations Conference on Trade and Development.
- Wagner, J.M. (2014) ‘International Investment, Expropriation and Environmental Protection’, Golden Gate University Law Review, 29(3), pp. 465-529.
