Social scientists have proven that—emotionally—a loss “weighs” at least twice that of a similar gain. That might be great for aspiring body-builders, but not so great for us regular Joes. It’s the actual gaining or losing and your feelings about it that…
Irrationally wanting things to stay the same, also called inertia. We do this in part because we want to avoid costs, even when they’re offset by a larger gain, a process psychologists call “Loss aversion”. You hold onto a mutual fund…