The Constitutional Shield: How Colombia’s Judiciary Shapes Investment Treaties Through Joint Interpretation
By Daniel Uribe
This policy brief examines an innovative judicial approach by the Colombian Constitutional Court in response to an increase in investor-state dispute settlement (ISDS) claims. The Court introduced a doctrine called ‘conditional constitutionality’ (exequibilidad condicionada), which mandates the executive to negotiate binding joint interpretative declarations prior to ratifying an International Investment Agreement (IIA). This process aims to clarify ambiguous language and ensure that IIA provisions align with constitutional principles, particularly concerning the sovereign right to regulate and the protection of human and environmental rights.
The analysis examines the “constitutional shield” doctrine established by this domestic mechanism, emphasising its legal basis in Article 31.3(a) of the Vienna Convention on the Law of Treaties. However, it highlights a significant discrepancy: the uncertain acknowledgement of these subsequent agreements within the international investment arbitration framework. The brief notes that arbitral tribunals, which often function as autonomous legal systems, may not consistently respect such domestic constitutional provisions. This creates ongoing tension between national sovereignty and arbitral independence. The policy brief concludes by addressing the limitations of relying solely on domestic solutions and calls for systemic reforms at the international level, such as within the United Nations Commission on International Trade Law (UNCITRAL) Working Group III.
Co-organized by the National Commission on International Trade & Health Studies (NCITHS), Thailand together with the International Trade & Health Programme (ITH), South Centre & other partners
Reeling Towards Termination: Assessing the WTO Agreement on Fisheries Subsidies and the Future of Fisheries Disciplines
By Vahini Naidu
The WTO Agreement on Fisheries Subsidies (AFS, “Fish 1”) entered into force on 15 September 2025, introducing new disciplines on subsidies linked to illegal, unreported and unregulated fishing, overfished stocks, and certain high seas activities. While celebrated as a landmark achievement, the Agreement is partial in scope, omitting the broader category of capacity-enhancing subsidies that drive overcapacity and fish stock depletion. Its obligations rely on national determinations and extensive notifications that may prove burdensome for developing Members while allowing major subsidisers to retain flexibility. The unprecedented termination clause in Article 12 ties the Agreement’s survival to the adoption of additional “comprehensive disciplines,” underscoring both the fragility of the current outcome and the need for continued negotiations. The experience of Fish 1 reveals significant lessons for the proposed WTO reform, including the importance of reviewable and time-bound rules, the risks of imbalanced sustainability provisions, and the institutional weaknesses of restricted negotiating processes.
Advancing Responsible Foreign Investment through a Legally Binding Instrument on Transnational Corporations and Other Business Enterprises
By Daniel Uribe Terán
Foreign Direct Investment (FDI) presents a complex dynamic, offering potential economic growth while posing significant risks of human rights abuses and environmental degradation. This policy brief considers that current voluntary frameworks, such as Economic, Social, and Governance (ESG) and voluntary due diligence standards, are insufficient to protect human rights, as they primarily focus on mitigating investor financial risk rather than preventing actual harm. Furthermore, the international investment regime, particularly the Investor-State Dispute Settlement (ISDS) mechanism, systemically undermines States’ sovereign right to regulate in the public interest. ISDS cases often penalise governments for enacting environmental, labour, and human rights protections, creating a “regulatory chill” that prioritises corporate profits over social welfare. The proposed Legally Binding Instrument (LBI) on business and human rights is presented as a necessary response to establish mandatory, enforceable obligations for corporations. This includes robust Human Rights Due Diligence (HRDD) and legal liability mechanisms, thereby rebalancing the system to ensure corporate accountability and align investment with sustainable development goals.
Trump and the Return of the Nation-State: Hegemony and Crisis of the Neoliberal Global Order
By Humberto Campodonico
This article examines the deepening crisis of the global economic and trade order established after World War II, a crisis accelerated by Donald Trump’s return to the United States presidency. Trump has adopted a stance openly hostile to neoliberal globalization, promoting instead a project centered on reinforcing the nation-state, employing commercial coercion, and using economic power to preserve US hegemony by neutralizing China. His “reciprocal tariffs” and the “Big Beautiful Bill” illustrate this shift, breaking with the World Trade Organization and consolidating elite power while sharply reducing social spending. Far from correcting the inequities of neoliberal globalization, these measures channel the social dislocations of deindustrialization and the impoverishment of the US Rust Belt into an authoritarian discourse of economic sovereignty.
The article situates this process within the broader crisis of democratic capitalism, marked by declining trust in liberal democracy and the rise of populisms and authoritarian regimes that capitalize on discontent without offering redistributive solutions. The analysis draws on Graham Allison’s “Thucydides Trap” and Carla Norrlöf’s reading of Ibn Khaldun to explain both hegemonic rivalry and internal fragmentation. Finally, it explores alternatives to the failed neoliberal order and argues for opening a collective debate on a new international system in which the Global South must play a role.
Mapping Africa’s Digital Trade: AfCFTA, JSI & AU AI Strategy
WTO Public Forum Working Session 49
Organizer: South Centre
18 September 202510:45-12:00 Room S3
This session explores how Africa is shaping its digital trade future through the AfCFTA Digital Trade Protocol, engagement in WTO e-commerce discussions, and the Continental Artificial Intelligence Strategy. It will examine the region’s priorities on data governance, local value creation, and inclusive digital markets, while assessing risks of fragmentation across regimes. Speakers will consider how African countries can assert greater agency in global digital rulemaking and align trade, technology, and development strategies. The session offers a forward-looking perspective on what a fair and inclusive global digital trade architecture could look like from an African and Global South perspective.
WTO Reform: Rewriting Trade History – The United States as Architect and Beneficiary of the Multilateral Trading System
A Working Paper on Elements of WTO Reform, 1 September 2025
By Vahini Naidu, Trade for Development Programme, South Centre
This paper examines the revisionist trade narrative advanced by the United States, which portrays multilateral rules as disadvantageous and seeks to justify unilateral tariffs and coercive bilateral arrangements. It demonstrates that the principles of non-discrimination and reciprocity pre-date Bretton Woods and were embedded in the multilateral system through U.S. initiatives from the 1930s through the creation of GATT in 1947. Far from being disadvantaged, the U.S. has consistently shaped and benefitted from the system, including through the Uruguay Round’s expansion of enforceable rules on services, intellectual property, and investment. The analysis shows that the shift toward what has been termed the “Turnberry system” risks fragmenting global markets, eroding the MFN principle, and deepening structural asymmetries that leave developing countries more vulnerable to exclusion. By correcting historical records, the paper underscores the importance of defending multilateral guarantees of equal treatment while building institutional capacity and strategic coordination to better safeguard development priorities in an increasingly contested global order.
WTO Reform: Structuring a Positive Agenda for Developing Countries
A Working Document on Structuring Reform Around Legal Principles and Development Priorities, 15 July 2025
By Vahini Naidu, Trade for Development Programme, South Centre
This Working Document outlines a structured contribution to the WTO reform process from a legal and developmental perspective. It organises the wide range of reform issues into seven categories, based on their legal character, institutional handling, and the procedural steps required for meaningful resolution. The aim is to support a more coherent and inclusive reform process by offering a logical framework grounded in the Marrakesh Agreement and reflective of the WTO’s foundational principles. It is intended to assist Members in navigating reform discussions in a manner that is principled, transparent, and responsive to the priorities of developing countries.
WTO Reform: Framing Challenges in the Facilitator-led Process and Strategic Considerations for Developing Countries
By Vahini Naidu, Trade for Development Programme, South Centre
This Informal Note was prepared to inform developing country participation in the next round of Facilitator-led consultations on WTO reform. It provides a critical reflection on the three-track framework proposed by the Facilitator, namely Governance, Fairness and Future, and raises concerns about the framing, legal coherence, and process legitimacy of the emerging reform agenda. The note highlights the risks of implicitly reshaping negotiating priorities through informal structuring, particularly in ways that may disadvantage developing countries or dilute existing legal mandates. It offers strategic considerations and suggested responses to the three guiding questions posed by the Facilitator, underscoring the need to reaffirm treaty-embedded rights such as Special and Differential Treatment, preserve institutional integrity, and ensure that any reform remains firmly anchored in multilateral principles, Member-driven processes, and the development dimension. A separate working document proposing a structured positive agenda for developing countries will follow to complement this analysis.
WTO Reform: Facilitator’s Report on Initial Consultations (JOB/GC/445)
Commentary, 9 July 2025
By Vahini Naidu, Trade for Development Programme, South Centre
This commentary provides a critical analysis of the Facilitator’s Report on Initial Consultations on WTO Reform, highlighting the absence of a shared reform objective, the fragmentation of issues, and the risks posed to developing country priorities, particularly with respect to the Special and Differential Treatment and self-designation, and the consensus-based decision-making. It examines the legal and institutional implications of current reform narratives and cautions against proposals that may entrench rather than correct systemic imbalances.
