Endowment Effect

What is Endowment Effect?

The endowment effect is when you feel that something you own is worth more than it actually is, just because it’s yours. Imagine if you got a sticker from a friend; as soon as it’s on your notebook, it might seem like the best sticker in the world to you. If someone else had the same sticker, you might not think it’s so great. This feeling happens because owning something makes us attached to it. It’s not that the sticker is any better, but it’s yours, which makes it feel special.

Another way to understand the endowment effect is to think of it as a little voice in our head that says, “This is mine, so it must be good.” It’s like if you have two identical toys, and one is yours, the voice will make you believe your toy is better. It doesn’t matter that both toys are the same; the one you own will just seem nicer, cooler, or more valuable to you.

How Does Endowment Effect Affect Us?

The endowment effect sneaks into our decisions and makes us behave in ways that might not make total sense if we really sat down and thought about it. Below are some examples of how this effect works in real life and explanations of why they are examples of the endowment effect:

  • Garage Sales: It’s tough to sell your belongings for cheap because they mean more to you than to someone else. You’ve spent time with your old skateboard, which might make you believe it should cost more. This is the endowment effect in action—we overvalue what we have due to our personal attachment to it.
  • Trading Cards: Suppose you’ve got a card others find valuable. You’re likely to inflate its value because it’s part of your collection. Here, the endowment effect shows up when we think our items are worth more, simply because they’re ours, and we’ve created memories and stories around them.
  • Buying and Selling Cars: When it’s time to sell our car, we might want more money for it than what we’d be willing to pay for the exact same car if we were the buyer. That’s the endowment effect making us believe our car is unique, even if it’s pretty common, just because it was ours.
  • Sports Team Merchandise: A jersey from your favorite team might feel priceless to you, prompting you to set a high selling price. The endowment effect makes us value the emotional connections we have to our belongings, not just the physical object itself.

Here’s a clear example: If you receive a mug at an office party, it might look like any other mug, but because it’s your mug, you might refuse to trade it. That’s the endowment effect leading you to attach more importance to something because it’s linked to you personally.

Dealing with Endowment Effect

Understanding the endowment effect is the first step to overcoming it. Here are some helpful strategies:

  • Think Like a Stranger: If you pretend the item isn’t yours and consider how much you would pay for it if you were buying it fresh from the store, you’re more likely to come up with a reasonable price.
  • Wait Before Selling: By waiting, you give yourself time to overcome the initial emotional value you’ve placed on the item and think more clearly about what it’s truly worth.
  • Seek Outside Opinions: Other people won’t have the same attachment to your items, which means they can provide a more neutral assessment of its value—a big help in beating the endowment effect.
  • Compare with the Market: Seeing how much other similar items are being sold for can help you gauge how much your possessions are really worth and can remind you to be more objective.

Related Biases and Concepts

Cognitive biases have a big role in how we think and act. Here are a few related to the endowment effect:

  • Loss Aversion: This means we’re more afraid of losing things than we are excited about getting new things. We don’t want to let go of our possessions for less than what we feel they’re worth, which is partly why the endowment effect kicks in.
  • Status Quo Bias: We often like to keep things as they are, and this includes keeping the stuff we own. The endowment effect can result from not wanting to change what we’re used to, even if it might benefit us.
  • Sunk Cost Fallacy: Sometimes we keep things not because we need them, but because we spent money on them once. Just like how you might keep a shirt from a concert you went to years ago simply because it was expensive, even though it doesn’t fit you anymore.

Debates and Controversies

People don’t fully agree on why we experience the endowment effect. Some think ownership itself changes how we value things, while others suggest it’s related to our dislike of losing what we have. And when it comes to the effect’s reach, there are questions about whether everyone around the world feels the endowment effect the same way, or if culture plays a part in how strong these feelings are.


The endowment effect is a fascinating part of how humans think. It can mess with our judgement by making us hold onto stuff for reasons that are more about emotion than sense. To deal with it, we need to recognize when we’re overvaluing our own things and make an effort to see them for what they are. If we can do this, we’ll be better at figuring out fair prices for things we want to sell and avoiding overpaying for stuff just because we’ve become attached to it. Understanding and managing the endowment effect helps us make wiser decisions and keeps us from being ruled by attachments to objects.