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Blog | March 16, 2026

Europe’s Merger Rules Face a 21st-Century Stress Test

As Brussels prepares to revise EU merger guidelines for the first time in more than two decades, policymakers face a delicate balancing act: updating competition rules for technology-driven markets while preserving the strict merger control framework that has long defined EU antitrust enforcement.

Europe’s Merger Rules Face a 21st-Century Stress Test
Minoas Vitalis
Minoas Vitalis

EU Issue Tracker Team Lead, FiscalNote

The European Commission is moving forward with a long-anticipated review of its merger guidelines, a process that could reshape how regulators evaluate corporate consolidation across the EU. The initiative comes at a time when policymakers are increasingly questioning whether competition rules developed in the early 2000s remain suited to markets shaped by digital technologies, data, and large-scale innovation.

At the centre of the debate is a broader policy tension. EU merger control has traditionally focused heavily on the risk that consolidation could raise prices or reduce consumer choice in the short term. However, some policymakers and industry stakeholders argue that this approach may not fully capture the competitive dynamics of modern markets, where innovation capacity, technological leadership, and long-term investment can play a decisive role.

The upcoming reform is therefore not simply a technical update. Instead, it reflects a broader effort to adapt EU competition policy to an economic environment defined by rapid technological change, geopolitical competition, and new strategic priorities.

Rules Written for an Earlier Economic Era

The current Horizontal and Non-Horizontal Merger Guidelines date back to 2004 and 2008 respectively. These documents set out the analytical framework used by the Commission when assessing mergers under the EU Merger Regulation and explain how regulators determine whether a transaction may significantly impede effective competition.

However, the economic context in which these rules were developed has changed considerably. Over the past two decades, digitalisation, platform-based business models, and innovation-driven competition have transformed many markets.

In several sectors, competitive advantage is no longer determined primarily by price or market share but by access to technology, research capacity, data, and the ability to sustain long-term investment.

This shift has prompted questions about whether the existing framework adequately reflects the competitive dynamics of modern markets, particularly in sectors where innovation cycles are fast and investment requirements are substantial.

A Changing Market Reality

Policymakers increasingly acknowledge that traditional merger analysis centred on short-term price effects may not fully capture competition in today's economy.

In technology-driven sectors, competition often revolves around innovation pipelines, access to data, and the ability to finance large-scale research and development. Companies compete to develop new technologies and platforms rather than simply offering lower prices.

As a result, regulators are examining whether merger assessments should take greater account of longer-term competitive dynamics, including the potential impact of consolidation on innovation and investment over extended time horizons.

At the same time, geopolitical pressures and industrial policy considerations are increasingly influencing discussions around competition policy. The strategic importance of sectors such as artificial intelligence, digital infrastructure, and clean technologies has added new dimensions to merger assessments.

Consequently, policymakers are exploring how competition rules interact with broader EU priorities, including economic resilience, technological leadership, and the green transition.

The Growing Debate in Brussels

The Commission's review has reopened a long-standing debate about the relationship between competition policy and European competitiveness.

Some policymakers and industry stakeholders argue that strict merger control may limit the ability of European companies to scale and compete internationally. In sectors requiring significant capital investment, consolidation can allow firms to combine resources, accelerate innovation, and compete more effectively with global rivals.

Others caution that loosening merger rules could weaken competition within the single market and ultimately reduce incentives to innovate. From this perspective, robust antitrust enforcement remains essential to prevent excessive market concentration and to ensure that smaller competitors and new entrants can challenge dominant firms.

Executive Vice-President for a Clean, Just and Competitive Transition Teresa Ribera has indicated that the objective of the review is not to relax merger control, but to ensure that the analytical framework reflects how competition operates in modern markets while maintaining strong safeguards for consumers.

From Case-by-Case Decisions to Clearer Guidance

Until now, the Commission has largely addressed evolving market dynamics through individual merger decisions. Over time, case practice has incorporated new economic concepts and analytical approaches, particularly in complex technology markets.

However, regulators increasingly recognise that relying solely on case-by-case enforcement may not provide sufficient clarity or predictability for companies planning mergers and acquisitions.

Businesses frequently call for clearer guidance on how regulators evaluate innovation effects, efficiencies, and long-term investment considerations. Companies seeking approval for mergers in research-intensive sectors are also likely to face growing expectations to demonstrate, with evidence, how consolidation could support innovation or other broader benefits.

Providing greater predictability is seen as particularly important in sectors where mergers may play a role in scaling technologies or supporting research-intensive industries.

What to Watch Ahead of the April Draft

Attention is now turning to the next stage of the review process. On 18 March, the College of Commissioners is expected to hold a non-public orientation debate on the review, potentially offering an early signal of the Commission's approach. The Commission is then expected to publish a draft of the revised merger guidelines in April 2026, with final adoption anticipated in the fourth quarter of this year following consultation and further policy discussion.

Several issues are likely to feature prominently in the upcoming draft.

One key area concerns innovation and dynamic competition. Regulators are expected to clarify how merger control should assess transactions in markets where competition takes place through research pipelines, technological capabilities, or access to data rather than traditional price competition.

Another question relates to scale and investment capacity. In capital-intensive sectors such as artificial intelligence, biotechnology, and advanced manufacturing, firms often argue that consolidation can support the large investments required for research, infrastructure, and product development.

Strategic sectors and economic resilience may also receive greater attention. As digital infrastructure, energy systems, and advanced technologies become increasingly central to economic security, policymakers are exploring how competition policy interacts with broader EU priorities.

Finally, the Commission may provide additional guidance on evaluating mergers whose competitive effects may emerge over longer time horizons, particularly in innovation-driven markets.

A Turning Point for EU Merger Policy

The review represents the first major overhaul of the EU's merger guidance in more than two decades. As such, it could play an important role in shaping how Europe approaches corporate consolidation in the coming years.

The draft guidelines expected in April will provide the first indication of how far the Commission is willing to adjust merger control to reflect the realities of innovation-driven markets.

By the time the final rules are adopted later in 2026, Europe may have a clearer answer to a question increasingly debated in Brussels: whether competition policy can evolve to support innovation and growth while preserving the principles that have long underpinned the EU's approach to market competition.

About FiscalNote's EU Issue Tracker

FiscalNote's EU policy intelligence platform, EU Issue Tracker (EUIT), provides comprehensive coverage of EU competition and merger policy developments, including the Commission's ongoing review of the EU merger guidelines, alongside other key EU business and consumer policy files. The platform tracks each dossier from the earliest signals of potential regulatory action through legislative debate, amendment, and adoption, giving users a complete view of the policy lifecycle.

FiscalNote's Brussels-based team combines expert policy analysis with advanced technology to summarize each dossier, explain the latest developments, and assess how proposals interact with existing EU legislation. EUIT also maps relevant committees, key stakeholders, and anticipated timelines, offering actionable insight for organizations seeking to anticipate regulatory change or engage effectively in consultations.