24JUN

Bruegel says EU sovereignty mimics rivals

2 min read

16:16UTC

Bruegel's Mario Mariniello argues the EU's June sovereignty package uses nationality as a proxy for security, mimicking US and Chinese strategy while EU cloud share holds near 15%.

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Key takeaway

Bruegel's Mariniello argues the EU sovereignty package mimics rivals while EU cloud share stays near 15%.

Bruegel economist Mario Mariniello argued in a June publication that Europe's tech-sovereignty package uses nationality as a proxy for security, mimicking the very strategies of the US and China it means to counter. Bruegel is a Brussels economic think-tank, and Mariniello's critique notes that EU cloud providers hold only about 15% of their own home market, so a nationality test does little to change who actually supplies European computing.

Bruegel had already costed the CADA public-sector cloud migration at up to €86bn. The mimicry critique extends that argument: even at that price, a design that screens suppliers by nationality rather than fixing the underlying gaps in energy cost and capital access does not buy genuine sovereignty, only a European-flagged version of the dependency logic it set out to escape.

Deep Analysis

In plain English

Bruegel is a respected economics think-tank based in Brussels. One of its economists, Mario Mariniello, published an argument in June that the EU's new tech-sovereignty rules are not actually making Europe more secure; they are just copying what the US and China do. His argument is based on a simple number: European cloud companies hold only about 15% of their home market. The rest goes to Amazon, Microsoft and Google. Telling government agencies they must use European cloud providers sounds like a sovereignty move, but if European providers do not have the scale to handle the workload, it just makes public services more expensive without making data more secure. Bruegel had already calculated in an earlier report that moving EU public-sector data to EU-only cloud providers would cost up to €86bn. Mariniello's new piece argues the expense does not buy the security benefit it is sold as.

Deep Analysis

Root Causes

Europe's 15% cloud market share reflects a decade of structural disadvantage: US hyperscalers Amazon Web Services, Microsoft Azure and Google Cloud entered the market with capital and network effects that European incumbents could not match at equivalent scale. Deutsche Telekom's Open Telekom Cloud, OVHcloud and Hetzner collectively address different segments and price points but have not closed the hyperscaler gap in the enterprise and public-sector segments CADA targets.

The buy-local mandate, rather than addressing the structural investment gap, attempts to solve a market-share problem through procurement rules. Mariniello's mimicry critique identifies the logical gap: the US and China built market leaders first and restricted access to rivals second; Europe is restricting access to rivals before it has built market leaders.

The restriction without the substitute creates cost without security gain, exactly the €86bn migration premium Bruegel costed in its earlier analysis.

What could happen next?

Risk
If CADA's nationality proxy fails to produce EU cloud market-share gains within five years, the €86bn migration cost will be a permanent structural expense rather than a one-time sovereignty investment.
Long term · Reported
Consequence
Mariniello's mimicry critique, published by a Commission-adjacent think-tank, provides academic cover for member states seeking to dilute CADA's nationality requirements in trilogue negotiations.
Short term · Reported
Meaning
The 15% EU cloud market-share figure, cited by Bruegel and sourced from the Commission's own State of the Digital Decade report, is the most authoritative quantification of the structural gap that CADA must overcome to work as intended.
Immediate · Assessed

Source Landscape

This story draws on centre-left-leaning sources from United States

United States

Consensus view: The European Centre for International Political Economy (ECIPE), which tracks the trade and regulatory cost of digital-sovereignty measures, has documented across its Digital Restrictiveness Index that nationality-based cloud procurement restrictions consistently fail to produce domestic market-share gains within the 3-5 year policy horizon: French and German government preferences for domestic cloud providers since 2018 have not reversed the 15% market-share figure Mariniello cites as of 2026.

The buy-local mechanism works in markets where domestic supply exists; it creates cost without substitution where it does not.

Counter-view: DIW Berlin's Marcel Fratzscher argues that Mariniello's critique conflates security with market competition: sovereignty measures are not designed to increase EU cloud market share in the abstract but to reduce the specific attack surface created by US government jurisdiction over provider data.

At 15% market share, EU cloud providers do hold data for the regulated public-sector workloads CADA targets; the question is whether 15% of the market with full EU governance is preferable to 85% with US CLOUD Act exposure, independent of whether market share grows.

Key tension: Whether CADA's nationality proxy for security actually reduces the EU's threat exposure, or whether a US-incorporated provider operating on EU-sovereign infrastructure under EU governance is equally secure and commercially more efficient.

Sources:Axios

Mentions:European Commission →Cloud and AI Development Act →CLOUD Act →Brussels →Marcel Fratzscher →Berlin →Microsoft →Amazon →Google →China →Mario Mariniello →Bruegel →Google Cloud →Deutsche Telekom →Amazon Web Services →

First Reported In

Update #10 · Digital euro to trilogue; Senate bars CBDC

Axios· 30 Jun 2026

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Causes and effects

Caused by

Bruegel puts the cloud law at 86bn euros

Bruegel's CADA cost estimate of up to €86bn is the analytical context for Mariniello's broader mimicry critique of the sovereignty package.

Occurred 11 Jun 2026

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This Event

Bruegel says EU sovereignty mimics rivals

Bruegel warns the sovereignty package screens suppliers by nationality without fixing the market-share, energy and capital gaps that drive Europe's dependence.

Led to

Bruegel puts EU AI compute at 5%

Continues Bruegel's earlier argument that EU cloud sovereignty policy mimics rivals while EU providers hold 15% market share.

Occurred 10 Sept 2026

Read story →

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