Endowment Effect Examples in Everyday Life: Owner Price vs. Buyer Price, Compared
Ask someone to name their endowment effect examples in everyday life and they usually think of coffee mugs in a lab. The better examples are in your garage, your brokerage account and your subscription list. This comparison puts the owner’s price next to the buyer’s price in five familiar situations, then shows a simple test to bring the two numbers closer together.
If you want the contrarian side of this idea, including when ownership bias actually helps you, we covered it in our earlier piece on when owning something warps its price. This post is narrower: two prices, side by side, and what closes the gap between them.
What the Endowment Effect Is, in One Comparison
The economist Richard Thaler is credited with naming the endowment effect in 1980 (Thaler, “Toward a Positive Theory of Consumer Choice,” Journal of Economic Behavior & Organization). The idea is that owning something raises how much you value it. Two people can look at the identical object, and the one who owns it will name a higher price.
The cleanest evidence comes from Kahneman, Knetsch and Thaler’s 1990 paper in the Journal of Political Economy. Participants who were handed a university-logo mug were asked the lowest price at which they would sell. Others, given nothing, were asked the highest price they would pay. A third group, the “choosers,” could pick either the mug or a sum of money. The mug sold for $6.00 in the campus bookstore.
| Experiment | Median seller price | Median chooser price | Median buyer price |
|---|---|---|---|
| Mug trial A (Kahneman, Knetsch, Thaler, 1990) | $7.12 | $3.12 | $2.87 |
| Mug trial B (same paper) | $7.00 | $3.50 | $2.00 |
Notice the choosers. They held no mug, so they had no ownership to defend, and their median value sat close to the buyers’ and far from the sellers’. That matters: the gap does not come from the mug being special. It comes from owning it. Across mug trials 3 to 7 in the paper’s fourth experiment, the ratio of the median seller price to the median buyer price ran from 3.8 down to 1.8 as people gained experience with the market. Actual trades in those trials came to 30 against roughly 91 expected if ownership had made no difference, about a third.
Endowment Effect Examples in Everyday Life: Owner vs. Buyer
The mug results become useful when you translate them into situations you are likely to face. This table lines up the owner’s internal story with the buyer’s, and the single question that helps you step out of the owner’s seat.
| Everyday situation | The owner’s view | The buyer’s view | Better question to ask |
|---|---|---|---|
| Selling a used car or furniture | “I know how well I kept it.” | “It has wear I can see.” | What have comparable ones actually sold for this month? |
| Selling a home | Every renovation and memory feels priced in | Comparable sales and condition drive the offer | Would I pay this asking price for it if I did not live here? |
| Holding a stock you inherited or picked | “It is part of my portfolio.” | “Is it worth buying today?” | Would I buy it today with new cash? |
| Keeping unused gym or app memberships | “I might use it again.” | “Would I sign up today at this price?” | Would I buy it again this month? |
| Free trials that convert to paid plans | Having the product feels like a loss to cancel | Without it, you would not pay | Would I opt in at the full price today? |
The pattern is the same each time. The owner prices history and effort; the buyer prices what the thing is worth to them, today, at that cost. Neither is wrong, but only one of them is paying the bill when a deal doesn’t happen.
Detailed Comparison: Where the Gap Costs the Most
Selling used goods and property
This is the most direct echo of the mug experiment. Sellers list a bike, a couch or a car at a price that reflects what they remember paying and caring for. Buyers do not share those memories. The result is listings that sit unsold, then get dropped later anyway. Our look at anchoring bias when buying a house shows the same pair of forces on the home side: a first number frames everything, and ownership makes it feel fair.
Holding investments you would not buy today
People rarely call it the endowment effect when it happens in a portfolio. They call it “being patient” or “waiting to get back to even.” But a stock you inherited or chose years ago gets a price premium in your head that it would not get if it were a ticker you saw today. This overlaps with the trap in our sunk cost fallacy investing deep dive, where past cost, not future value, drives the decision to hold.
Subscriptions and trials
Once a free trial converts, the product becomes yours, and cancelling feels like losing something rather than avoiding a charge. Behavioral economists link this to loss aversion, the finding that losses weigh heavily compared with equal gains. Tversky and Kahneman’s 1992 estimates put the weight on losses at about 2.25 times the weight on gains. Our loss aversion budgeting case study shows how a $200 cut can feel like $400.
Keeping clutter because it feels like an asset
Closets, garages and storage units are endowment effect museums. Every unused item carries a price you would not pay today. If you want a practical way to work through it, our declutter finances checklist turns the same question into a weekend project, and storage fees are the proof that ownership has a running cost.
Why the Gap Shrinks With Experience
One of the more hopeful findings comes from economist John List’s work on sports card traders. List found that the more real-world trading experience a person had, the weaker their endowment effect, and professional dealers showed almost none. The lesson is not that you must become a dealer. It is that thinking of belongings as things you could swap changes how attached you are to them.
I came to this by accident. I write software for a living, and my habit of treating every decision as something to test carried over to my own money. I manage my investments myself in index funds and tax-advantaged accounts, with no advisor, and a few years ago I started running a simple check on anything I held: would I buy this today at this price? I was curious whether the answer would change what I did. For index funds it never does, which is the point of them. For the odd individual position I picked up in my early years, the honest answer was no more often than I wanted to admit, and that is exactly the owner’s premium showing up in my own numbers.
Which Fix Should You Choose?
Different situations call for different tools. Use this as a short decision guide.
- If you are selling something: price it from recent comparable sales, not your memory of what you paid. Set a date after which you will drop the price.
- If you are holding an investment: run the two-price test. Ask whether you would buy it today with new cash. If not, you have found the premium.
- If you are paying for something recurring: imagine you had never signed up. Would you opt in at this price this month?
- If you are not sure: hand the question to a rule. A written threshold, such as “sell if unused for 12 months,” removes the owner from the decision.
One caution applies. The endowment effect is not always a mistake. It can keep you from selling a long-term holding in a panic. The goal is to notice the premium, not to delete it. Our post on status quo bias in financial decisions covers the cousin of this bias that keeps people in defaults they never chose.
Endowment Effect Examples in Everyday Life: FAQ
What is the endowment effect in simple terms?
The endowment effect is the tendency to value something more highly simply because you own it. In the best-known experiment, people given a coffee mug asked a median of $7.12 to sell it, while people without a mug offered a median of $2.87 to buy the same mug.
Is the endowment effect the same as loss aversion?
They are closely related but not identical. Loss aversion is the broader principle that losses feel larger than equal gains, with early estimates around 2 to 1. The endowment effect is one of its most visible results: giving up something you own registers as a loss, so you demand more to part with it.
Can experience reduce the endowment effect?
Evidence suggests yes. In John List’s sports card study, traders with more real-world trading experience showed a weaker endowment effect, and professional dealers showed almost none. Repeatedly treating items as things to trade rather than things to keep seems to loosen the attachment.
How do I know if the endowment effect is affecting my investments?
Ask the two-price question: would you buy this holding today at today’s price, with fresh cash? If the honest answer is no, but you are reluctant to sell, ownership is probably inflating your valuation.
Does the endowment effect always hurt my finances?
No. It can protect you from panic selling or from trading away a long-term holding for a small short-term gain. It hurts when you overprice things you should sell, such as used goods, an old car, or a home, or when you hold assets you would never buy fresh.
