The Digital Single Market Debate Europe Keeps Having Wrong

Three months after the European Parliament, Council, and Commission signed the One Europe, One Market Roadmap in Limassol, the question worth asking is not whether Europe needs a unified digital market. That debate ended years ago. The question is why, after a decade of legislation, the market remains fragmented, and whether the current approach can actually fix it.

The June 2026 event hosted by CEPS (Centre for European Policy Studies) and Sitra (the Finnish Innovation Fund) attempted something unusual: rather than adding another layer of political ambition, it presented a diagnostic report identifying ten specific bottlenecks and asking which ones matter most. This framing deserves attention, because it shifts the conversation from "what do we want?" to "what is actually blocking us?"

The Bottleneck Problem

The CEPS-Sitra report makes an uncomfortable observation: the EU now has a broad and growing body of digital legislation in force, but its cumulative effect has often been to add compliance layers rather than reduce fragmentation. Digital firms still face divergent national implementation, overlapping supervisory structures, and differing interpretations of shared concepts across Member States.

This is not a facts disagreement. Everyone agrees fragmentation exists. It is not primarily a values disagreement either. Most stakeholders share the goal of European competitiveness. What makes this debate stuck is an incentives disagreement: Member States benefit from regulatory divergence in ways that make harmonisation politically costly, even when economically beneficial.

Consider the data from BusinessEurope: 2023 Commission figures showed a decline in Single Market integration for both goods (from 26.0% to 23.8%) and services (from 7.8% to 7.6%). The market is not just failing to integrate further. It is regressing. The question is whether the Roadmap's quarterly accountability mechanism can reverse this trend, or whether it will become another monitoring exercise that documents decline without preventing it.

What the Roadmap Actually Commits To

The April 2026 Joint Declaration includes several concrete elements: targets for legislative proposals and agreement by co-legislators, quarterly reviews to monitor progress, clear institutional responsibilities, and regular stocktaking for transparency. The deadline is end of 2027.

The strongest version of the argument for this approach would be: previous Single Market initiatives failed because they lacked operational teeth. The Roadmap provides accountability mechanisms that force institutions to show progress or explain failure. Quarterly reviews create political pressure that annual reports cannot.

The strongest version of the counterargument would be: accountability mechanisms only work when there are consequences for non-compliance. The Roadmap creates transparency about failure but does not fundamentally change the incentive structure that produces fragmentation. Member States that benefit from regulatory divergence will continue to benefit, and quarterly reports will document this without changing it.

Which of these is correct? The honest answer is that the evidence will emerge over the next 15 months.

The Simplification Paradox

MEP Aura Salla raised a point at the June event that deserves more attention than it received. As she , "simplifying Europe's digital regulatory landscape is much easier said than done." After a decade of building an increasingly complex framework of digital regulation, revisiting existing rules without creating significant legal uncertainty requires careful preparation.

This is the simplification paradox: the more legislation exists, the harder it becomes to simplify without creating new problems. Each regulation has stakeholders who have invested in compliance. Each rule interacts with others in ways that are not always visible. Changing one element can cascade through the system in unpredictable ways.

Salla's specific recommendations merit examination: comprehensive impact assessments of proposed changes, thorough assessment of how different digital regulations interact, and stronger safeguards against market distortions created by dominant US and Chinese tech companies. These are not radical proposals. They are basic due diligence. The fact that they need to be stated suggests the current process may be moving faster than its analytical foundation supports.

The Scale Problem

The CEPS-Sitra report makes a point that often gets lost in regulatory debates: without a fully integrated home market, European firms cannot achieve the scale required for global competitiveness. This is not an abstract concern. It is the mechanism through which fragmentation translates into economic underperformance.

A European startup selling into 27 different regulatory environments faces costs that a US startup selling into one market does not. These costs are not just financial. They are cognitive and strategic. Every hour spent navigating divergent national implementations is an hour not spent on product development or customer acquisition.

The Jacques Delors Friends of Europe Foundation frames this as "Europe's largest low-risk, high-return growth opportunity, one that requires political will more than new public spending." The framing is strategically useful: it positions Single Market completion as fiscally neutral, which matters in an era of constrained public budgets.

But political will is not a resource that can be allocated by declaration. It emerges from aligned incentives, and the incentives for Member States to maintain regulatory divergence remain largely intact.

The Capital Market Connection

One dimension of the debate that deserves more attention is the relationship between regulatory fragmentation and capital market fragmentation. The CEPS-Sitra report notes that unless capital market fragmentation is addressed in parallel with regulatory reforms, new instruments such as the Scaleup Europe Fund and the proposed 28th regime risk remaining underutilised due to insufficient market depth.

This is a systems problem, not a policy problem. Regulatory harmonisation and capital market integration are interdependent. Progress on one without progress on the other produces limited results. The Roadmap addresses regulatory harmonisation but has less to say about capital market integration, which falls under different institutional competencies.

The question worth asking: is the current institutional architecture capable of addressing problems that span multiple policy domains, or does the division of competencies itself become a bottleneck?

Where This Leaves the Debate

The Digital Single Market debate is not stuck because people disagree about goals. It is stuck because the conversation keeps returning to the same positions without examining the underlying structure that produces them.

The CEPS-Sitra approach of identifying specific bottlenecks and asking which are most consequential represents progress. It moves from "we need a Digital Single Market" (which everyone agrees with) to "which specific barriers should we prioritise removing, and what would it cost to remove them?" (which produces more useful disagreement).

The Roadmap's quarterly accountability mechanism will produce data over the next 15 months. That data will reveal whether the current approach is working or whether something more fundamental needs to change. The honest position is to watch the evidence and update accordingly.

What would have to be true for the Roadmap to succeed? Member States would need to accept short-term political costs for long-term economic benefits. The Commission would need to prioritise enforcement over new legislation. The accountability mechanism would need to create genuine consequences for non-compliance.

What would have to be true for it to fail? The incentive structure that produces fragmentation would need to remain unchanged despite the new monitoring process. Quarterly reviews would document problems without solving them. The 2027 deadline would arrive with integration metrics still declining.

Both outcomes remain possible. The debate worth having is not which outcome to hope for, but which specific interventions would shift the probability distribution.

For those tracking how these institutional dynamics intersect with AI governance and European tech policy, the Human × AI Content Hub continues to map the territory where conference declarations meet implementation reality.