The endowment effect is the cognitive bias which results in people attributing higher values to goods merely because they own then. In other words, owning something increases an individual’s perception of what it’s worth.
Summary by The World of Work Project
The Endowment Effect
The endowment effect is a cognitive bias which results in people attributing higher values to objects simply because they own then. It’s a bias that’s related to divestiture aversion, loss aversion, prospect theory and “the mere ownership effect”. What this bias really means is that, for most people, the very act of owning something increases that person’s perception of what that item is worth.
The bias has been observed to result in people being unwilling to sell goods that they own for a fair, replacement, market price. It’s also been observed to lead to situations where individuals are willing to pay (WTP) less for a new good than they would be willing to accept (WTA) for the sale of the same good that they already own. Again, this demonstrates that the mere act of ownership increases the perceived value of a good.
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The World of Work Project View
The idea behind this cognitive bias has been around for at least as long as the phrase “A bird in the hand is worth two in the bush”. The actual bias is a bit more complicated than what’s explained here, but the main point stands. There are lots of reasons why people value things that they own, not least the effort and risk associated with replacement.
The endowment effect can have a large impact on decision making in relation to trading activities and other aspects of behavioral finance. For example, traders who own certain tradable stocks may attribute higher values to them than other traders who don’t own those stocks. Obviously, this bias can have an impact in all areas of commercial negotiation.
Our overall view is that this is an interesting bias that’s of particular import in certain area of work, but has a minor role in others. It’s worth everyone being aware of this bias as knowing about it may help with decision making, but there are no huge lessons in relation to it for most people.
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