The Ratchet Effect

What the ratchet effect means

The ratchet effect is the political and institutional pattern in which powers, budgets, regulations, or structures expanded during a crisis become permanent features of governance long after the crisis has passed. Like a mechanical ratchet - a device that allows movement in one direction only - the expansion of authority tends to click forward but never click back.

The concept has roots in the work of economist Robert Higgs, whose book Crisis and Leviathan documented how the size and scope of the American federal government grew dramatically during each major crisis of the twentieth century - World War I, the Great Depression, World War II - and never fully contracted afterward. The emergency created the justification. The bureaucracy created the permanence. And the public, having grown accustomed to the new arrangement, stopped demanding its reversal.

The ratchet effect is not a conspiracy theory. It doesn’t require anyone to deliberately manufacture crises for the purpose of power accumulation (though that can happen). More often, it’s a structural pattern: crises genuinely demand expanded powers, those powers become embedded in institutions and habits, and the political will to reverse them evaporates once the acute fear subsides.

How the ratchet effect works

The crisis window

Every crisis opens a window during which dramatic action becomes politically possible. Changes that would face years of debate and opposition in normal times can be enacted in days during a genuine emergency. Public fear reduces resistance. The urgency of the situation makes careful deliberation feel irresponsible. Legislators who might normally scrutinise a proposal vote for it because opposing emergency measures looks reckless. The advance can also be deliberate. Salami tactics achieve a large objective by slicing it into steps small enough that each one seems too minor to resist, until the sum of them has moved things a long way.

This is not inherently bad. Crises sometimes do require swift, expansive responses. The problem is what happens after the crisis. The legislation stays on the books. The agencies created to manage the emergency continue operating. The surveillance infrastructure remains active. The expanded budget becomes the new baseline. Nobody dismantles the apparatus because nobody takes on the political cost of arguing that it’s no longer needed.

Institutional self-preservation

Once an institution exists, it develops its own survival instincts. Staff are hired. Budgets are allocated. Constituencies form around the institution’s continued existence. The agency created to manage a temporary crisis acquires permanent stakeholders who have strong incentives to maintain and expand it, regardless of whether the original justification still holds.

This is a specific instance of a broader systems dynamic: institutions, once created, tend to persist and grow. Dismantling an institution is politically harder than creating one, because creation can be justified by urgency while dismantlement requires someone to argue that a functioning organisation should be destroyed - an argument that always sounds more radical than it is.

The normalisation cycle

Normalisation is the cultural engine of the ratchet effect. Measures that felt extraordinary when first introduced gradually become part of the background. Airport security screening that was expanded after a specific threat becomes the permanent standard. Surveillance cameras installed during a particular crisis become a fixture of the urban landscape. Emergency economic measures become standard fiscal tools.

The public adjusts. The memory of what things were like before fades. Young people who grew up after the crisis never knew the previous normal. The expanded power becomes invisible - not because it’s hidden, but because it’s familiar. And once something feels normal, the political energy required to reverse it is far greater than the energy that was needed to introduce it.

The ratchet effect in history and practice

National security

The most visible examples of the ratchet effect sit within national security. Emergency surveillance powers introduced during wartime or in response to terrorism have consistently outlived the emergencies that justified them. Intelligence agencies created during World War II became permanent fixtures of the Cold War state. Counter-terrorism legislation passed in the immediate aftermath of attacks became the legal framework for routine data collection on entire populations.

The pattern is remarkably consistent across countries and decades: the threat justifies the power, the power becomes infrastructure, the infrastructure becomes normal, and the normal becomes the new minimum from which the next crisis will ratchet further.

Public health

The pandemic of the early 2020s provided a dramatic illustration of the ratchet effect in action. Governments around the world assumed emergency powers - restricting movement, mandating business closures, implementing digital tracking systems, and governing by executive decree rather than legislative process. Many of these measures were genuinely necessary.

The ratchet question is what happened afterward. Some powers were formally revoked. Others were quietly retained. Digital infrastructure built for contact tracing found new purposes. Emergency procurement processes, which bypassed normal accountability structures, established precedents that persisted. The lessons drawn from the pandemic - that governments can act with extraordinary speed and scope when they choose to - will shape the political possibilities for decades to come.

Economic policy

Economic crises consistently ratchet government involvement in markets. The Great Depression led to the creation of regulatory agencies and welfare programmes that became permanent features of governance. The 2008 financial crisis led to central bank interventions that were described as temporary but became structural. Each crisis expanded the toolkit of government economic management, and each expansion remained in place after the crisis passed.

This isn’t a judgement about whether those expansions were good or bad. Some were clearly beneficial. The ratchet effect is a descriptive observation: crisis-driven expansions of power persist because the political, institutional, and psychological conditions for reversal rarely materialise.

Why the ratchet rarely reverses

The asymmetry of action and inaction

Introducing emergency measures in a crisis is politically rewarded. Rolling them back afterward is politically risky. If you remove a security measure and something bad happens, you’re blamed. If you keep an unnecessary security measure in place, the cost is invisible - distributed across the population as mild inconvenience, slight erosion of liberty, or marginal budget waste. The political incentives overwhelmingly favour keeping the ratchet where it is.

The knowledge gap

After the acute phase of a crisis, public attention moves on. Most people neither know nor care which emergency measures are still in force. The political constituency for reversal is small and diffuse. The institutional constituency for continuation is concentrated and motivated. In this asymmetry, persistence wins by default.

The slippery slope that isn’t fallacious

The ratchet effect is important because it represents the real-world phenomenon that slippery slope arguments often try to describe. Not every expansion of power leads to tyranny. But the documented pattern shows that expansions of power do tend to persist and accumulate, and that each new baseline becomes the starting point for the next expansion. This isn’t a logical fallacy - it’s an observable historical trend.

How to recognise the ratchet

Insist on sunset clauses

Emergency legislation should have built-in expiry dates that require active renewal rather than passive continuation. This doesn’t prevent re-authorisation, but it forces a public debate about whether the powers are still needed - rather than allowing them to persist through inertia.

Track the baseline

Pay attention to what counts as “normal.” If you can remember when a particular power, process, or restriction didn’t exist, you’re in a position to ask whether it’s still justified. The ratchet works best when the previous normal is forgotten.

Ask who benefits from continuation

Emergency powers create beneficiaries - agencies, contractors, political actors. When considering whether to reverse an expansion, identify who has a stake in its continuation. Their arguments for maintaining it may be sincere, but they should be weighed against the interests of everyone else.

Chesterton’s fence applies here with an important caveat: yes, understand why a power was created before removing it. But also understand that the reason it was created was a specific crisis that may no longer exist. The fence might have had a perfectly good reason for being built - and an equally good reason for being taken down.

The ratchet effect doesn’t mean that emergency responses are always wrong or that expanded powers are always unjustified. It means that the direction of travel is structurally one-way, and that maintaining the liberties, constraints, and accountability structures that existed before a crisis requires active, sustained effort - not just the passage of time.