When loss aversion overrides testable hold and exit rules

What the archive describes

The archive presents loss aversion as a cognitive bias in which losses are weighted more heavily than comparable gains when decisions are made. In the terms used here, loss-aversion is that extra weight on the felt cost of a loss relative to the felt benefit of a similar-sized gain, and it distorts hold and exit choices.

The bias is tied to a disposition pattern of exiting winning positions too early and retaining losing positions too long. That follow-on pattern is the disposition-effect: winning positions are closed earlier than the planned exit and losing positions are retained past it.

The material reports that the pain of a loss is felt, on average, about 1.5 to 2.5 times as strongly as the pleasure of a gain. The same urgency that once favored rapid response to threat is described as more likely to impair than to help decisions when it is applied to markets.

When a sudden decline replaces the rule

After a tempting late entry in an established uptrend, a sudden decline is described as producing shock and indecision so that the bias, rather than the planned rule, governs the next action. That stall is an adverse-move-freeze: shock and delay replace the written next action.

Awareness and mapping

Awareness of these typical reaction patterns is framed as a first step toward reducing their influence on later choices. Mapping how the bias appears in entry, hold, and exit choices is presented as a way to offset some of the more damaging decisions it tends to produce.