You will be able to explain loss aversion and how it bends money choices.
Answer this before you read on. A friend offers you one coin toss: heads, they pay you S$150, and tails, you pay them S$100 (made-up amounts). On average you come out ahead, and you could afford to lose S$100. Most people still decline.
Lesson 2.1 introduced Kahneman and Tversky's prospect theory and the idea of a reference point. One part of that theory says losses measured from the reference point are felt more strongly than gains of the same size. For example, losing S$500 hurts more than finding S$500 pleases. Kahneman and Tversky called this loss aversion. Because of it, people go to some lengths to avoid anything that looks like a loss.
Be cautious with any precise figure you see for how much more a loss hurts. The size of the effect depends on the study, the people and the stakes. Some researchers argue it is weaker for small everyday amounts than the popular version suggests, or that it depends heavily on how the choice is presented, and the debate is not settled. The broad direction has held up across many settings: people tend to weigh a possible loss more heavily than an equal gain. That alone explains a lot of expensive behaviour.
Loss aversion shows up in two ways that look like opposites. The first is holding on. While a share is worth less than you paid, you have a paper loss. Selling below the purchase price makes it a real loss, and that moment hurts. So people keep losing positions far longer than their own plans suggest, hoping to get back to even first. Hui Min, from lesson 2.1, has a S$600 loss on shares, the kind that can sit in a portfolio for years. Lesson 6.1 shows how holding losers combines with selling winners early.
The second is refusing risks that make sense. Take a saver whose goal is twenty years away and whose plan says they can wait out a fall. Shares might fall next year, so they keep a large sum in cash. The cash feels safe every year, but over time the cost of that safety can exceed the falls being avoided. The coin toss at the start is the same choice in miniature.
Loss aversion also makes people pay more than a risk is worth to make it go away. The extended warranty is the most familiar example.
Darren bought a TV for S$1,600 in a Tampines electronics shop (invented figures). At the counter he was offered a three-year extended warranty for S$199, and the salesperson said a panel repair could cost "several hundred dollars". He pictured a broken TV and a big bill, and he paid.
Suppose a repair after the maker's warranty ends costs S$350, and the chance of needing one in the extra years is one in ten. Both are example figures. S$350 x one in ten = S$35, which is the average repair cost across those years. The warranty costs S$199, and Darren could have repaired or replaced the TV from his savings. Shops sell extended warranties partly because the price is well above the expected cost of claims. If you could replace or repair the item from savings, a warranty mostly buys relief from the thought of a loss.
The logic changes when the loss would really hurt. Insurance against losing your income or your home is worth paying for even though the average payout is lower than the premium, because you could not absorb that loss yourself. Lesson 2.3 looks more closely at insurance and small chances. Before you pay to avoid a loss:
Estimate the possible loss and its chance, and multiply them to get the average cost. Compare that average cost with the price of avoiding the loss. Ask whether you could cover the loss from your own savings without real harm. If you could, a high price to avoid it is usually a poor deal. If you could not, as with your income or home, insurance is worth paying for.
Loss aversion depends on what you count as a loss, so framing matters. The same decision feels different when it is described as a loss and when it is described as what you keep, even though the money is identical.
When Hui Min thought of selling as admitting a S$600 mistake, she could not sell. Then she described the same sale as keeping S$4,200 (an example figure) and choosing where it goes next, possibly back into the same shares. After that, the decision was about the company again.
Darren later reframed his warranty the same way. In the loss frame, skipping it meant a possible S$350 bill one day. In the keep frame, it meant S$199 staying in his account, and he would pay for a repair only if he ever needed one.
To do this yourself, first notice when a choice is being described as a loss, such as "losing S$600". Describe it again as what you keep and where it goes next, such as "moving S$4,200 to where it's most useful". Then decide on the merits again, and check whether the loss frame was hiding a better option. Reframing is a way to make that check. It is not a trick for talking yourself into anything.
Think of one choice you've avoided because it might show a loss, such as selling something, switching plans or taking a reasonable risk, and get ready to describe it as what you'd keep.
Write one choice you avoided because it might show a loss and what the choice looks like framed as what you keep.
Junxiong-WFG Organisation is an authorised representative of AIA Financial Advisers Private Limited (Reg. No. 201715016G).