When it comes to exploring the ways in which human emotions cause investing mistakes, a simple illustration can be a big help. With that in mind, here’s a question…
Let’s say you and I play a game based on the flip of a fair coin. If you call it correctly, you win £110. But if you lose, you pay me £100. Does that sound like an appealing proposition?
Research suggests that you’ll probably tell me where to go. In fact, when presented with this gamble most people demand a much, much higher potential payback. Tests have shown that the average player offered this type of challenge demands a win of around £200 to accept it (and often a lot more).
The reason for that comes down to human emotion. Typically, we feel the pain of a loss much more than the satisfaction of a win. So what’s needed is a gain-to-loss ratio of something like 2-to-1 for the average punter to feel comfortable with this game. In behavioural science this is the essence of something called loss aversion.
The pain of losing
On its own, loss aversion has been blamed for one of the reasons why investors sell winning positions too readily and hold losing…