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Tactics The Perversity Thesis

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The Perversity Thesis

Also called Backfire argument · It will hurt the people it's meant to help

Arguing that a reform will produce the opposite of what it intends, so trying to help will only make things worse.

Type
Tactic
Updated
Read
4 min
Examples
3
Sources
3

Definition

The perversity thesis argues against a change by claiming it will backfire: the effort to improve something will make it worse.

Economist Albert Hirschman named it in The Rhetoric of Reaction (1991), as the first of three arguments that opponents of reform have used for centuries, alongside the futility and jeopardy theses. It’s the most dramatic of the three, because it doesn’t just say the reform won’t work. It says the reform will produce the exact opposite of its goal.

How it works

The perversity thesis lets an opponent of a policy sound like a supporter of its goal. “I want to help low-wage workers too, which is why I oppose this” is much easier to say than “I don’t care about low-wage workers.” It also sounds sophisticated: anyone can see the intended effect, but the speaker claims to see the hidden one.

The claim is empirical, so it can be true or false. It becomes a tactic when the backfire is asserted with confidence, without evidence about how big it would be or whether it would outweigh the intended effect.

How to spot it

  • “It will hurt the very people it’s meant to help.”

  • “This will backfire.”

  • A predicted reversal, stated as certain, with no estimate of how large it would be.

  • One harmful side effect is treated as cancelling the whole policy.

  • The speaker shares the goal in words but offers no other way to reach it.

Examples

01The minimum wage

Opponents of minimum-wage increases often argue that raising wages will hurt low-wage workers, because employers will cut jobs.

What went wrong

This is a real empirical question, and economists still debate the size of the effect. A well-known 1994 study by David Card and Alan Krueger found no drop in fast-food employment after New Jersey raised its minimum wage, while other studies have found job losses. The problem is stating the backfire as certain. The honest version of the argument estimates how many jobs, against how much in raised wages.

02Tougher sentences

Reform advocates sometimes argue that longer prison sentences will increase crime, because prisons turn minor offenders into hardened ones.

What went wrong

The same pattern appears on the other side of the debate. The concern may be partly right, but the claim that the policy will reverse its own goal still needs evidence about the size of the effect. “Prison has some criminogenic effects” is a much smaller claim than “longer sentences increase crime overall.”

03Poor relief

In early-19th-century England, critics of poor relief argued that helping the poor would increase poverty by encouraging idleness and larger families. Hirschman’s chapter on perversity traces this line of argument from the Poor Laws to modern debates about the welfare state.

What went wrong

The argument shaped harsh reforms with little evidence about the size of the claimed effect. It treated a possible incentive as a certain outcome, and a partial effect as a total reversal.

Why it works

It’s counterintuitive, and counterintuitive claims sound smart. It also lets the speaker claim the moral high ground: they’re not against the goal, they’re just more realistic about it. And unintended consequences are real, so the general idea is familiar and believable even when the specific claim isn’t supported.

How to counter it

1Ask for the mechanism and the size

Accept that side effects are possible, and ask how large this one would be.

Say

That could happen. How big would the effect be, and how do you know?

2Ask about the net effect

A side effect doesn’t cancel a policy unless it outweighs the intended effect. Ask for the comparison.

Say

Even if some people are hurt, does it make things worse overall, or just less good than hoped?

3Ask what they’d support instead

If the speaker shares the goal, they should be able to name a better way to reach it.

Say

If you share the goal, what would you do instead that wouldn’t backfire?

When it's fair play

Backfire effects are real. Sociologist Robert Merton described the problem of “unanticipated consequences” in 1936, and every serious policy analysis looks for them. A perversity argument is legitimate when it identifies a plausible mechanism, offers evidence about its size, and compares it honestly with the intended benefits. Many good policy critiques have this form.

Hirschman also pointed out that reformers have their own mirror-image move: the claim that failing to act will bring disaster. That warning needs evidence about size too. The tactic, on either side, is predicting a dramatic outcome with confidence the evidence doesn’t support.

Sources & further reading

  • Albert O. Hirschman, The Rhetoric of Reaction: Perversity, Futility, Jeopardy (Belknap Press of Harvard University Press, 1991).
  • Robert K. Merton, “The Unanticipated Consequences of Purposive Social Action,” American Sociological Review 1, no. 6 (1936): 894–904.
  • David Card and Alan B. Krueger, “Minimum Wages and Employment: A Case Study of the Fast-Food Industry in New Jersey and Pennsylvania,” American Economic Review 84, no. 4 (1994): 772–793.

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