Endowment Effect

In behavioral economics, the endowment effect (also known as divestiture aversion) is the hypothesis that a person's willingness to accept (WTA) compensation for a good is greater than their willingness to pay (WTP) for it once their property right to it has been established. People will pay more to retain something they own than to obtain something owned by someone else—even when there is no cause for attachment, or even if the item was only obtained minutes ago. This is due to the fact that once you own the item, foregoing it feels like a loss, and humans are loss-averse. The endowment effect contradicts the Coase theorem, and was described as inconsistent with standard economic theory which asserts that a person's willingness to pay (WTP) for a good should be equal to their willingness to accept (WTA) compensation to be deprived of the good, a hypothesis which underlies consumer theory and indifference curves.

Read more about Endowment Effect:  Examples, Background, Criticisms of The Endowment Effect, Implications of The Endowment Effect

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