The Narrowing of the Possible: Why Britain's Cost-of-Living Crisis Is Debated Without Genuine Economic Disagreement

When British households face the sharpest squeeze on real incomes in a generation, one might expect the public debate to reflect an equally sharp contest between rival economic philosophies. Instead, what has emerged is something closer to a managed disagreement — a dispute about the pace and competence of economic management rather than its underlying assumptions. The question worth putting to students of public argument is not merely what Britain's politicians are saying about the cost-of-living crisis, but what they are not permitted to say within the terms that mainstream discourse has quietly established.

The Consensus That Does Not Name Itself

British economic debate operates within a set of assumptions so widely shared that they rarely require defence. Fiscal responsibility, broadly defined as keeping public borrowing within limits that satisfy bond markets and credit rating agencies, functions less as a policy position than as a precondition for being taken seriously. Politicians who question this framework are typically not refuted; they are reclassified. They become irresponsible, unrealistic, or — the most efficient of dismissals — Corbynite.

This matters for reasoning because a claim that is never seriously contested is a claim that is never seriously examined. When both major parties accept that the government's primary economic obligation is to demonstrate creditworthiness rather than to, say, maximise employment or reduce structural inequality, the debate that follows is necessarily technical rather than philosophical. Voters are offered a choice between different routes to the same destination, not between different destinations.

The consequences for public understanding are significant. Citizens who have internalised the consensus framework will evaluate economic policies according to its internal logic — does this measure reduce the deficit, control inflation, attract investment? — rather than asking whether that framework itself is the correct one to apply to their circumstances.

What the Mainstream Excludes

Several economic traditions with substantial academic pedigrees are effectively absent from British mainstream debate, or appear only in caricature.

Modern Monetary Theory (MMT) holds that a government issuing its own currency cannot become insolvent in the way a household or business can, and that the real constraint on public spending is inflation rather than borrowing per se. Whatever one concludes about MMT's merits — and the debate among professional economists is genuine and ongoing — the argument deserves engagement rather than dismissal. In Britain, it rarely receives either. It surfaces mainly as a straw man deployed to discredit heterodox thinking.

Post-Keynesian economics, with its emphasis on demand management, the role of private debt in generating instability, and the distributional consequences of austerity, has a substantial body of peer-reviewed literature behind it. Economists such as Ann Pettifor and Steve Keen have made these arguments accessibly and in specifically British contexts. Yet their frameworks are seldom incorporated into the assumptions that shape BBC economics coverage, HM Treasury communications, or the questioning of ministers before select committees.

Degrowth and ecological economics raise the possibility that the cost-of-living crisis cannot be resolved by returning to pre-pandemic growth trajectories because those trajectories were themselves generating the ecological and distributional pressures that now manifest as household financial stress. This argument may be wrong. But it is not being refuted; it is being ignored.

Why the Range Has Narrowed

The contraction of permissible economic argument in Britain is not the product of a conspiracy. It reflects the interaction of several structural features of British public life.

First, the institutional architecture of economic authority — the Office for Budget Responsibility, the Bank of England's Monetary Policy Committee, the Treasury's internal modelling — is built around a particular set of macroeconomic assumptions. These institutions produce authoritative-sounding outputs that journalists and politicians treat as neutral, when they are in fact deeply theoretical.

Second, the professional incentives facing economists in public-facing roles reward proximity to consensus. An economist who endorses MMT or degrowth in a mainstream outlet risks their reputation in ways that an economist who endorses fiscal consolidation does not, regardless of the relative quality of the underlying arguments.

Third, the media environment compresses economic argument into forms that favour the familiar. A thirty-second clip about the deficit is comprehensible to a producer; a thirty-second clip about the sectoral balances identity is not. Complexity is edited out, and with it the heterodox frameworks that tend to be more complex to articulate.

What Citizens Need to Reason Well

For students and educators engaging with this material, the pedagogical challenge is to distinguish between two very different claims: this economic framework is wrong and this economic framework is outside the consensus. The second claim is empirically verifiable; the first requires argument. British public debate routinely treats them as equivalent.

A citizen equipped to reason independently about the cost-of-living crisis would be able to identify the assumptions embedded in any given policy proposal — not just its stated objectives. They would recognise that terms like fiscal sustainability and sound money are not neutral descriptions but theoretical commitments that carry implications for who bears the cost of adjustment. And they would understand that the absence of an argument from mainstream debate is evidence about the sociology of British institutions, not evidence about the argument's validity.

The Stakes of the Missing Debate

This is not an abstract methodological concern. The policy choices Britain makes in response to the cost-of-living crisis — on energy pricing, housing supply, wage floors, benefits uprating, and public sector pay — will be shaped by the economic frameworks that policymakers consider legitimate. If those frameworks are narrower than the available evidence warrants, the resulting policies may be less effective than alternatives that were never seriously considered.

For DebateLab UK's purposes, the most important question is not which economic framework is correct. It is whether British public discourse is currently structured in a way that would allow a correct but heterodox framework to receive a fair hearing. On current evidence, the answer appears to be no — and that is a problem for the quality of argument regardless of one's economic convictions.