Endowment effect

Self Assessment

The Endowment Effect is a cognitive bias wherein people ascribe more value to things merely because they own them. This phenomenon suggests an emotional attachment and often an irrational overvaluation of such items.

How it works

The Endowment Effect operates through psychological ownership, where an individual's sense of possession increases the item's perceived value. This effect often results in a discrepancy between how much people are willing to pay to acquire an object versus how much they would accept to sell it.

Examples

  • A person values a mug they own at $10 but would only pay $5 for an identical mug if they did not own it.
  • Homeowners often price their property above market value due to personal attachment, believing it is worth more than what buyers are willing to pay.
  • Employees hold on to company stock based on ownership rather than actual stock performance, valuing it more because it belongs to them.

Consequences

The Endowment Effect can lead to inflated market prices, poor decision-making in business transactions, and consumers overvaluing their possessions. It disrupts rational economic decisions, leading to inefficient market outcomes such as loss aversion and market saturation with overpriced goods.

Counteracting

To counteract the Endowment Effect, individuals can engage in tactics such as taking an outsider's perspective, setting predetermined evaluation criteria, or practicing mindfulness to reduce emotional attachment to possessions.

Critiques

Critics of the Endowment Effect argue that it oversimplifies human behavior by attributing irrational decisions purely to ownership. Some researchers claim that the effect's strength can vary significantly across cultures and contexts, questioning its universal application.

Fields of Impact

Also known as

Ownership Bias
Mere Ownership Effect

Relevant Research

  • Experimental Tests of the Endowment Effect and the Coase Theorem

    Kahneman, D., Knetsch, J. L., & Thaler, R. H. (1990)

    Journal of Political Economy, 98(6), 1325-1348

  • Bad Riddance or Good Rubbish? Ownership and Not Loss Aversion Causes the Endowment Effect

    Morewedge, C. K., Shu, L. L., Gilbert, D. T., & Wilson, T. D. (2009)

    Journal of Experimental Social Psychology, 45(4), 947-951

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