People's Judgment Is Distorted by Free

The moment you see the two characters for "free," the rational calculation device in your brain short-circuits—few people would nod honestly if told that.
However, this is not a matter of willpower or personality.
In the face of the word "free," human cost-benefit calculation ability is structurally paralyzed. There is an economist who proved this in a laboratory.

Behavioral economist Dan Ariely introduces this experiment in his book "Predictably Irrational" (Hayakawa Non-Fiction Bunko).
Prepare two types of chocolate. High-quality Lindt truffles for 15 cents each, and ordinary Hershey's Kisses for 1 cent each. At these prices, most people choose the Lindt based on quality. So far, so normal. However, when the price of both is lowered by 1 cent, the situation changes completely. Lindt is 14 cents, and Hershey's is 0 cents—in other words, free. The price difference remains 1 cent, completely unchanged. Nevertheless, people flocked in droves to the free Hershey's chocolate.
Rationally speaking, the judgment to choose the high-quality product even if it is 1 cent more expensive should not change. But "free" blew away the calculation of that 1 cent itself.

Ariely called this the "magic of zero cost."
What makes free special is that the possibility of losing something becomes zero.
If you pay even 1 cent, the risk of "maybe I lost out" arises. Loss aversion, which I mentioned last time—that people feel losses twice as heavily as gains—is at work here too. Free completely eliminates that risk. That is why people jump at the zero-loss possibility of free, even if it means kicking away a higher-value paid option.
Free is not an extreme form of a discount, but a different kind of magic with a different quality.
There is a chasm between a price going down and a price disappearing.

This magic is set up everywhere in daily life.
Have you ever had the experience of "putting an unnecessary item in your cart to get free shipping"?
To save 500 yen on shipping, you buy an 800-yen unnecessary item. If you calculate it calmly, it's a 300-yen loss, but your brain is dominated by the pleasure of "zero shipping" and ignores the net result.
"Buy one get one free"
"First month free"
"Free trial now"
—These are all precise traps aimed at your calculation device.
Why do companies use free so much?
The answer is simple: it is because free is the most effective.

And ironically, those most susceptible to this trap are often the steady people who pride themselves on being "good at saving."
The stronger the desire not to lose money or waste it, the more strongly one reacts to the zero-loss possibility of free.
They don't realize that the judgment "this is a good deal" is actually justifying an expensive purchase.
People who save diligently every day are lured by free coupons and benefits, and in total, they end up spending more—this scene might be sleeping in your receipts as well.
Being frugal and being resistant to free are completely different things.

A practical defense strategy is surprisingly simple, but it works.
When you see the word "free," erase it from your mind once before making a judgment.
Instead of "free shipping," think about "how much is that item, and do I really need it?"
Instead of "first month free," think about "is it worth continuing to pay from the second month onwards?" The word "free" has a hypnotic effect that makes you look away from the conditions that follow it. Therefore, consciously peel off the word and lay out only the total amount to be paid and the value to be gained. Just by doing that, your paralyzed calculation device will reboot.

The old adage that "there is nothing more expensive than free" was not just a sermon.
It was a surprisingly accurate observation that empirically identified the flaws in the human brain.

Being weak to free is not because you are foolish.
It is because you are human.
However, only those who know this will pause for a moment in front of the trap of free and quietly protect the contents of their wallet.

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