Why British output per hour stopped rising

What the economy produces now

The United Kingdom produced 4.00 trillion United States dollars of output in 2025, which is 57,602 dollars a head, or 64,606 dollars at purchasing power parity. Growth was 1.4%, inflation 3.9% and unemployment 4.7%. Income is distributed at a Gini coefficient of 32.4 in 2021.

The shape is a service economy with very little else. Services contribute about 82% of output, and financial services are the specialisation within that. London held a 37.8% share of global foreign exchange trading in 2022, the country was the largest net exporter of financial services in 2024, and Edinburgh runs a substantial financial sector of its own. The technology sector is the other growth area.

How a workshop became a trading floor

The scale of the industrial decline is easier to see in one series than in any argument about it. The United Kingdom's share of global manufacturing output rose from 9.5% in 1830, during the industrial revolution, to 22.9% in the 1870s. It had fallen to 13.6% by 1913 and to 10.7% by the interwar period, and it kept falling afterwards.

Gradual deindustrialisation meant closures in mining, heavy industry and manufacturing, and the loss of highly paid working-class jobs. The replacement employment was not in the same places, did not pay the same and did not require the same skills, and the regions that lost most have not recovered relative to the south-east.

That is the origin of the regional disparity the OECD still names as a persistent headwind on economic performance and living standards. A country that industrialised earliest also deindustrialised earliest, without a policy for what came next, and the resulting geography of prosperity has proved extremely durable.

What grew instead was finance, professional services and, later, technology, concentrated overwhelmingly in London and the south-east. The trade is a real one: the country exports services at a scale few others manage. The cost is an economy whose successful part is geographically narrow.

Why productivity stopped improving

The decade after the financial crisis produced a combination that economists still argue about. By 2015 employment was at its highest level since records began and growth was strong by the standards of the Group of Seven, while workforce productivity was the worst since the 1820s, with what growth there was attributable to a fall in working hours rather than to output per hour rising.

An economy can employ almost everyone and still fail to get richer, and that is what happened. Wages track productivity over time, so a country whose output per hour stops improving is a country whose living standards stop improving, whatever the employment figures say.

The OECD's current assessment names weak productivity growth alongside high and volatile energy prices and rising fiscal pressures and lasting regional disparities as the persistent headwinds weighing on performance and living standards. It judges the government's pro-growth agenda broadly appropriate and adds the necessary qualification: delivering stronger and more inclusive growth requires sustained structural reform alongside sound macroeconomic and fiscal policy.

Its projections are modest. Growth weakens to 0.9% in 2026 as renewed inflationary pressure squeezes real incomes and uncertainty weighs on consumption and investment, then picks up to 1.1% in 2027 as global energy prices normalise and trade and financial conditions gradually improve. Consumer price inflation rises to 3.7% in 2026 before moderating to 2.4% in 2027.

What leaving the European Union changed

The referendum of June 2016 decided on departure, Article 50 was activated, and the leaving date moved from March 2019 to April, then to October, before the process completed. The country is now outside the single market and the customs union.

The economic effect is easiest to describe in terms of friction rather than tariffs. Goods crossing the border now require customs declarations, rules-of-origin checks and regulatory conformity assessment that did not previously exist, and each of those is a cost that falls hardest on small exporters and on supply chains that cross the channel more than once.

Services are the larger issue for an economy that is 82% services. Trade agreements handle goods far better than services, and the mutual recognition of professional qualifications and financial regulation that membership provided has been replaced by narrower arrangements.

Migration changed as well, and its labour market effects are visible in sectors that had relied on European workers: agriculture, hospitality, food processing, road haulage and parts of health and social care. Whether the overall effect on productivity is positive or negative is contested. That the composition of the workforce changed is not, and sectors that had staffed seasonal and shift work from a European labour pool have had to raise wages, mechanise or shrink, each of which shows up somewhere in the national accounts.

What the country still makes and grows

Manufacturing is smaller than it was and larger than the decline narrative suggests, concentrated in high-value sectors where the United Kingdom retained a technological position: aerospace, pharmaceuticals, specialised vehicles and precision engineering. These are industries with long development cycles and high research intensity, and they employ far fewer people than the industries they succeeded. A modern aerospace plant supports a supply chain and a research base rather than a town, which is why the value can rise while the employment falls and why the places that lost the old industries did not get the new ones.

Agriculture, forestry and fishing occupy a small share of output and a disproportionate share of land and politics. The sector was reshaped by four decades inside the Common Agricultural Policy and is being reshaped again by the domestic scheme replacing it, which pays for environmental outcomes rather than for production. That is a change of purpose rather than of rate: a subsidy for growing food and a payment for maintaining habitat reward different farms, and the transition has fallen hardest on upland livestock holdings that were marginal under the previous scheme too.

Energy has moved further than any other sector. North Sea oil and gas made the country a net exporter for part of the late twentieth century and is now in long decline, while offshore wind has been built out on a scale that has changed the electricity system. The transition from a fossil producer to a renewables producer in the same waters is the clearest instance of an old industrial economy converting an asset rather than losing it.

What the union costs and pays

The four countries do not contribute equally and do not receive equally, and the arrangement that reconciles them is fiscal rather than constitutional. Devolved administrations receive block grants from the United Kingdom government and decide how to spend them, with limited powers to vary taxation, so the money comes from the centre and the choices are made locally.

That produces a politics in which every argument about devolved policy is also an argument about the grant. A devolved government can be blamed for outcomes it funds from an allocation it does not set, and the United Kingdom government can be blamed for an allocation whose consequences it does not administer. Both complaints are partly right, which is why neither goes away.

The regional economics underneath are starker than the fiscal arithmetic. Scotland, Wales, Northern Ireland and the English regions outside the south-east all produce less output per head than London and the surrounding area, and the gap has widened over the decades in which services replaced industry. The transfers narrow the difference in public spending without narrowing the difference in what the regions produce.

That is the structural version of the productivity problem. A country cannot raise national output per hour while most of its territory is well below the national average and only one region is well above it, and no British government of any party has found a policy that changes the geography rather than compensating for it.

What the energy transition has already done

The United Kingdom was among the first countries to legislate a net zero target for 2050 and to put carbon budgets in place, and emissions have already fallen by around 50% since 1990. That is a substantial reduction achieved while the economy grew, and it happened largely by removing coal from electricity generation.

The next stage is harder and more capital-intensive. The International Energy Agency's assessment is that decarbonising the power sector through sizeable new investment in renewables and nuclear is the important pillar of what remains, alongside newer technologies, because the cheap reduction has already been taken.

Offshore wind is where the country converted an old advantage into a new one. The same shallow shelf seas that held the oil and gas hold some of the best wind resources in Europe, and the supply chains, ports and offshore engineering skills built for hydrocarbons transferred to turbines more readily than they would have transferred to anything else.

The economic consequence cuts both ways. High and volatile energy prices are one of the four headwinds the OECD names, and a system with more renewables and less imported gas is the medium-term answer to exactly that exposure. What lies between the two is a decade of investment that has to be financed while fiscal pressures are already rising.

Where the money and the people are

The concentration in London is the fact that shapes everything else. The capital produces a share of national output far above its share of population, employs the highest-paid workers, attracts the most investment and absorbs the most infrastructure spending, and the gap between it and the rest has widened over the period in which services replaced industry.

High London wages set national prices for housing and professional services, so the cost of living in the capital is calibrated to salaries that most of the country does not earn, and the housing market transmits that outward. Younger workers move to where the work is and cannot afford to live there.

Fiscal pressures are rising at the same time, from an ageing population, from health and social care commitments and from the accumulated cost of two decades of shocks. The OECD's framing is that the pro-growth agenda has to be delivered while fiscal sustainability is maintained, which is a polite way of saying the country needs faster growth to afford what it has already promised.

None of this is decline in the sense the word usually carries. The United Kingdom is a wealthy country with a world-scale financial sector, strong universities, high employment and an energy transition further advanced than most. What it has not solved is making output per hour rise, and everything else in the diagnosis follows from that. United Kingdom: politics covers the institutions that would have to solve it.