Definition
The ratchet effect is the psychological and economic pattern in which spending rises easily when income or living standards go up, but is very hard to bring back down later, even when money gets tight.
Why doesn't spending come back down once it goes up?
You've probably seen a ratchet wrench that tightens one way but won't turn back, or a winch with a catch that stops it from unwinding. In mechanics, this part is called a 'ratchet.' It turns freely in one direction, but a small catch locks it so it can never spin backward.
Our spending habits work a lot like this. When income goes up, people move to a nicer place, buy fancier coffee, and pick up better gadgets without a second thought. Spending grows naturally and fast.
The trouble starts when times get hard. Even if your paycheck shrinks or your allowance gets cut, going straight back to your old frugal life is tough. When spending that has grown used to a higher standard of living refuses to retreat, that's what we call the ratchet effect.
Why you can't go back to a small phone screen
Say you switch from an old phone with a small screen to a new one with a big display. For the first few days, it feels amazing. A few months later, that big screen is just normal life. Now imagine being told to use your old small phone again. The text looks tiny and cramped, and it feels almost impossible.
The human brain adapts quickly to anything more convenient or better. But it feels the pain of losing that upgrade much more strongly. Moving from a compact car to a big SUV is easy. Going from an SUV back to a compact takes real willpower.
Then add the pressure of what other people think. Lowering the lifestyle you've shown to others can feel like failure or embarrassment. So some people even go into debt to keep up their old spending patterns by force.
A bit more precisely: from economic theory to public policy
This idea became widely known through the consumption theory of the American economist James Duesenberry, published in 1949. Traditional economics had assumed people raise or cut spending like machines, in step with their current income. Duesenberry showed that real people are deeply influenced by their own past peak spending and by the spending of the people around them.
Today, the ratchet effect is also used to explain what happens in companies and governments, not just in personal wallets. For example, when a salesperson's results improve, the company jumps the target for next year. But even when the economy turns bad, the target that went up rarely gets lowered. That is a kind of ratchet effect too.
The same goes for governments that expand welfare benefits or budgets and then struggle to cut them when public finances get tight. One reason is that the people receiving the benefits take them for granted and push back. Explanations also point to other political and institutional factors working alongside it.
Common misconceptions
The ratchet effect only happens to extravagant, wasteful people.
It is a common psychological pattern that shows up in many people. It is explained by the fact that people adapt quickly to convenience and dislike losses.
Where you meet it
You get used to a premium subscription or high-quality music streaming and can't go back to the free basic version.
After moving into a bigger apartment, you wonder how you ever lived in your old small place.
In one sentence
Like a ratchet that turns only one way, a spending level and set of expectations that have gone up don't easily come back down, even when income drops.