Definition and Prospect Theory
Loss aversion is the phenomenon whereby losses feel roughly twice as painful as equivalent gains feel pleasurable. It is a core concept of prospect theory, proposed by Kahneman and Tversky in 1979, which explains why human decision-making systematically deviates from expected utility theory. Because losing 10,000 yen hurts more than gaining 10,000 yen pleases, people tend toward risk-averse behavior.
Overreaction to Ranking Drops
Loss aversion shapes emotional responses to ranking changes. A 10-position rise on MyRank produces less joy than a 10-position drop produces disappointment. This asymmetry leads to excessive fear of decline and a tendency to cling to the status quo.
In reality, ranking fluctuations contain statistical noise, and reacting strongly to small movements is irrational. Simply knowing that loss aversion exists helps temper these overreactions.
Relationship to Status Quo Bias
Loss aversion underpins status quo bias. Because change carries potential losses, people disproportionately prefer staying put. When considering a job change to improve income rank, the risk of losing current stability is overweighted, causing objectively advantageous opportunities to be passed over.
Rational Countermeasures
To counteract loss aversion, separate decisions from emotions. Useful techniques include quantifying trade-offs numerically, imposing a cooling- off period before finalizing choices, and asking yourself "If I were not already in this situation, would I actively choose it?" Viewing ranking changes as long-term trends rather than reacting to short-term swings is the rational approach.