Beyond Trade: The Transformative Potential of the Mercosur–EU Agreement

Why might the rules of a trade agreement matter more than the tariffs it stipulates? The Association Agreement between Mercosur and the European Union (EU) has come at a pivotal moment, following 25 years of negotiations. Global value chains are being reconfigured amid geopolitical tensions and accelerating digital and energy transitions. Against this backdrop, the agreement promotes an approach to biregional integration that goes beyond trade in goods and services. 

At its core, it has the potential to provide a stable institutional foundation for Mercosur countries. It could strengthen the rules of trade, increase predictability, deepen political and institutional cooperation, and create better conditions for modernizing production and attracting long-term investment. 

The challenge is clear: Mercosur needs to boost productivity and attract high-quality investment. However, existing regulatory frameworks do not always support these goals. The Mercosur–EU agreement is about much more than tariff liberalization; it will also catalyze the regulatory and institutional reforms that Mercosur needs, regardless of this agreement. This process includes adopting best practices, modernizing regulatory frameworks, and strengthening governance. In many ways, this is one of the agreement’s most transformative aspects. 

What’s Special About This Agreement? 

The Mercosur–EU agreement creates an economic area encompassing more than 700 million people and representing more than 20% of global GDP, one-third of world trade, and a quarter of global foreign direct investment (FDI). 

For Mercosur countries, the agreement’s defining feature is the breadth of issues it covers. It goes well beyond market access for goods and also includes commitments covering trade in services, public procurement, support for SMEs, sanitary and phytosanitary measures (SPS), technical barriers to trade, rules of origin, intellectual property, and sustainable development.  

Recent research has found that “deep” trade agreements—those that go beyond tariffs to include other policy issues—deliver greater benefits than more limited agreements. Provisions on these matters can also yield positive outcomes such as attracting more FDI or improving environmental performance, although their effects vary depending on the specific provisions in question and each country’s institutional environment.  

More Than a Trade Deal: Governance, Predictability, and Institutional Momentum 

In a global environment marked by uncertainty, an agreement grounded in clear rules and solid institutions makes international business more predictable. Rules on trade remedies, intellectual property, dispute settlement, customs procedures, technical standards, and regulatory transparency can help reduce arbitrary decision-making and strengthen legal certainty. 

For example, the chapter on transparency establishes that regulations be published in a timely, accessible manner, requires advance notice of new regulatory proposals, and encourages evidence-based rulemaking. These requirements not only reduce uncertainty for businesses but can also improve the quality of regulatory processes across Mercosur countries. 

The evidence from past experience is compelling. European FDI stocks multiplied in countries that signed agreements of this sort with the EU, increasing nearly sevenfold in Mexico, fourfold in Chile, and close to tenfold in both Egypt and South Africa (figure 1). 

While these increases cannot be attributed solely to trade agreements, research shows that treaties signal confidence to international investors. By entering into them, countries undertake commitments whose breach carries higher political, institutional, and reputational costs than exclusively domestic commitments, thereby reducing uncertainty and encouraging investment. 

As Büthe and Milner (2008) observe, a trade deal with the European Union signals levels of regulatory stability and openness that are difficult to match through domestic reforms alone. It also encourages investment from third countries seeking to integrate into EU-linked value chains. 

The Mercosur–EU agreement does more than correct existing distortions. By establishing clear, predictable rules, it promotes gradual market opening that encourages gains in productivity, efficiency, and quality in both industry and services. 

These productivity gains are expected through three main channels. First, increased competition encourages a restructuring of production and greater efficiency in less competitive sectors. Second, access to cheaper inputs and capital goods can help firms adopt more advanced technologies. Third, preferential access to a larger number of consumers will enable businesses to scale production and lower their costs.

The evidence supports these findings. A growing body of research shows that trade openness tends to boost productivity and innovation in firms in emerging economies. Much of this evidence comes from liberalization processes in Chile, Brazil, Argentina, and Mexico in the 1980s and 1990s. Similarly, Melitz and Redding (2023) argue that international trade can deliver productivity gains that may prove important in the long term. 

Finally, these gains are not limited to external markets. The new trade agreement can also promote integration within Mercosur. As member countries adapt their regulations and policies to the agreement’s provisions, they are likely to align better with one another. 

This regulatory convergence could have positive effects on intraregional trade. In parallel, the agreement establishes mechanisms for dialogue and cooperation that will require greater coordination among members, likely strengthening regional governance, cooperation, and Mercosur’s ability to negotiate with partners outside the bloc. 

The Challenge of Implementation 

Since the interim trade agreement (iTA) entered into provisional force on May 1, 2026, attention has shifted to implementation. The iTA took effect after being approved by all four Mercosur parliaments and following the Council of the European Union’s decision to authorize its provisional application. 

Coordinated ratification by all the bloc’s members has allowed tariff preferences and new disciplines to enter into force simultaneously, thereby favoring coordinated implementation and enabling members to make the most of shared synergies.

However, the implementation phase brings four key challenges. First, aligning national regulations with the new commitments. Second, determining how EU tariff-rate quotas will be managed and allocated. Third, developing an outreach and training strategy for the private sector. And fourth, establishing systems to monitor sector-specific and regional impacts.

These priorities reveal that implementation is no minor matter, and nor is it purely a technical or bureaucratic exercise. It is the stage that will determine how far the potential of the Mercosur–EU agreement translates into tangible results for firms, workers, and the broader population. Monitoring how the agreement’s impacts are distributed across sectors is thus an essential part of a responsible implementation strategy.

In this sense, implementing the agreement requires Mercosur countries to commit to a regulatory reform agenda. This is an opportunity to modernize regulatory frameworks that many countries have not updated for decades. For example, regarding SPS measures, adopting modern risk assessment and notification procedures can reduce border rejections, facilitate access to European markets, and improve the quality of domestic regulations. In public procurement, digitizing and standardizing tender processes strengthens oversight of public spending and encourages greater competition among suppliers.

Experience also shows that tariff liberalization is necessary but will not be sufficient to fully capitalize on the opportunities created by the Mercosur–EU agreement. Mercosur export capacity will depend on whether the bloc’s firms and regulatory systems can meet European labeling, traceability, conformity assessment, and SPS standards. In addition, European buyers and retail chains often require private certifications that, in practice, function as de facto market-entry requirements.

Rodrik (2018) argues that the more trade agreements address regulatory and procedural issues, the harder it is to analyze them using traditional economic theory, because their effects are multidimensional and highly dependent on the institutional capacity of the countries that implement them. This complexity is precisely why technical assistance and institutional capacity-building are indispensable aspects of the implementation process. 

IDB Support and Blog Post Series 

The Inter-American Development Bank (IDB) has served as a strategic partner for Mercosur. We will continue supporting the bloc not only through financing but also through knowledge generation, technical assistance, and support in implementing the agreement and taking full advantage of it.

This article is the first in a series of publications on the Mercosur–EU agreement that seek to translate its technical content into concrete public policy proposals. Future posts will explore a range of relevant issues: What must Mercosur customs authorities do to meet EU standards? How can firms comply with rules of origin to capitalize on preferential market access? What opportunities does the agreement create for digital services firms? What is the best way to ensure a smooth transition? 

Tariff liberalization is the most visible aspect of the Mercosur–EU agreement but it is not necessarily the most transformative. Its regulatory disciplines, commitments to institutional modernization, and support for stronger governance make the agreement a powerful tool for development. How far its benefits reach depends not just on signing the agreement but also on how effectively it is implemented. The implementation phase is where the challenges begin—and where the opportunities lie.

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