Did Brexit make Britain more or less productive and why?

MATCH OF THE DAY: PRODUCTIVITY — EU 2, Britain 0

Brexit was sold as a route to a nimbler, freer, more productive economy. Ten years on, the scoreline in the OECD’s GDP per hour worked index relative to the U.S. series is hard to miss: Britain moved from above the EU average in 2016 to below it by 2023. That matters now because Keir Starmer’s growth mission is explicitly built around higher living standards, productive jobs and a stronger business environment, while the government’s Modern Industrial Strategy is supposed to restart the engine. This is the first thing to see: Britain did not turn post-Brexit freedom into a productivity surge. It turned it into a stall.

1 PROBLEM
This is not a one-off dip. It is a pattern of going sideways while the benchmark keeps moving. In the OECD productivity series, Britain’s productivity score was 84.0 in 2016 and 83.91 in 2023. Over the same years, the EU average rose from 80.68 to 87.97. So Britain went from 3.32 points above the EU to 4.06 points below it. The rhythm matters more than the drama: not collapse, not comeback, just drift. The table movement tells the same story, with Britain slipping from third out of five to fourth. Britain’s problem is not that it suddenly became uniquely bad. It is that it stopped improving while the other side kept accumulating small gains.

1) PLAN — freedom is not a route-map
The original promise was clear: Brexit freedoms would unlock growth, innovation and higher productivity. But a promise is not a mechanism. Britain had a case for agility; it did not have a visibly funded, measured productivity route-map with the same clarity as the other side. The EU’s Digital Decade set measurable targets for digital business, skills and infrastructure, while France 2030 arrived with €54 billion, thousands of projects and large-scale training commitments. Britain’s current growth mission and industrial strategy are serious attempts to fix the problem, but they arrive after years of flat productivity form. Europe planned for compounding. Britain planned for optionality. Plan score: UK 4/10, EU 7/10 — the EU had the clearer route to delivery.

2) POLICY — friction beat freedom
The load-bearing policy story is friction. The Office for Budget Responsibility says the post-Brexit trading relationship will leave long-run UK productivity 4% lower than if Britain had remained in the EU. The mechanism is brutally unromantic: higher trade barriers lower trade intensity, reduce competitive pressure and weaken the gains from specialisation. Firm-level evidence points the same way. A Bank of England paper estimated that the Brexit process cut business investment by about 11% over three years and reduced productivity by roughly 2% to 5%, with management attention diverted and spending on intangibles such as R&D, software and training weakened. Freedom sounded like lighter boots. In practice, Britain ran onto the pitch carrying more drag. 

Policy score: UK 3/10, EU 7/10 — the EU system kept more scale and less friction.

3) PERFORMANCE — Europe still has the stronger working models
The scoreboard is not just about rules; it is about working machinery. In the OECD productivity ranking, Germany stays well above Britain, and that gap reflects more than luck. Germany’s Fraunhofer network links applied research directly to firms through 74 institutes, more than 30,000 staff and a model built around technology transfer and industry contracts. France 2030 shows the same instinct in a different style: state-backed industrial upgrading tied to investment and capability-building. Britain still has serious science and business strengths, but Europe looks better at turning strengths into spread, scale and staying power. On productivity, the continent has more of the plumbing already connected. 

Performance score: UK 4/10, EU 8/10 — Europe has more working models already on the pitch.

FINAL WHISTLE — what this score really means
Britain’s problem on productivity is not that it lacks talent or that one referendum instantly wrecked the whole economy. It is that Britain chose freedom without building a stronger machine for turning freedom into efficiency.

The winner won because Europe kept more of the conditions that help productivity compound: scale, lower friction, clearer investment frameworks and stronger delivery institutions.

So on this trend, how much do you think the UK's productivity will increase (or decrease) compared to the EU average by 2030? Test your forecasting skills!

That is what Starmer’s government now inherits. The challenge is not to rediscover the slogan of growth. It is to build the missing mechanics of growth. That matters because the Office for National Statistics says UK productivity is still settling back toward the weak trend seen after 2009.

If that persists, Britain will keep sounding like a comeback side while playing like a mid-table one. The bigger question is where Britain really sits once the whole league table, the future line and the escape routes come into view.

That's the reckoning coming tomorrow.