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Sunk-cost effects on purely behavioral investments
Marcus Cunha1, Fabio Caldieraro
1Michael G. Foster School of Business, University of Washington, Seattle.
Cognitive Science
|May 19, 2011
Summary
People may fall prey to behavioral sunk-cost effects, even without monetary ties. This occurs through effort justification, where invested time and effort influence decisions, suggesting these effects are widespread.
Area of Science:
- Psychology
- Behavioral Economics
Background:
- The sunk-cost effect, a bias towards continuing a behavior due to previously invested resources, is well-documented for monetary investments.
- Existing research has largely failed to replicate the sunk-cost effect for purely behavioral investments (e.g., time, effort) unless linked to monetary value.
Purpose of the Study:
- To investigate whether purely behavioral sunk-cost effects exist independently of monetary considerations.
- To propose and test an alternative explanation for behavioral sunk-cost effects based on effort justification.
Main Methods:
- Two experiments were conducted to examine the influence of behavioral investments on decision-making.
- Participants' choices were analyzed in relation to the time and effort they invested, independent of financial outcomes.
Main Results:
- The results supported the hypothesis that individuals exhibit sunk-cost effects even when investments are purely behavioral.
- Evidence suggests that the effort-justification mechanism plays a key role in the manifestation of these effects.
- Behavioral investments, such as time and effort, can lead to biased decision-making.
Conclusions:
- Purely behavioral sunk-cost effects are likely prevalent and not solely dependent on mental accounting of monetary value.
- Effort justification provides a robust mechanism explaining how behavioral investments influence subsequent choices.
- Understanding behavioral sunk-cost effects is crucial, as they appear to be pervasive in everyday decision-making.
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