News

26 March 2021

Investing for humans

The economics professor had a problem, or rather his students did. Despite their best efforts on a test he had set for them, the students were still averaging only 72 out of a possible 100. Faced with a mass revolt, the professor had a brilliant idea.

For the next iteration of the exam, the professor decided to score out of a total of 137 points. The students’ despair subsequently turned to joy when they received back their marked papers. Hey presto! The average score of the class was now 96.

As the now Nobel Laureate economist Richard Thaler tells this story from the early days of his teaching career, none of his relieved students seemed inclined to compute that despite the higher numerical average, the percentage average was still only 70%!

Our tendency to stray far from the rational ideal in the textbook ‘“homo economicus’” (or what Thaler calls ‘“econs’”) is documented in his best-selling 2015 book “Misbehaving – the Making of Behavioural Economics”.

Ideal vs reality

The difference between the ideal of human behaviour and the reality explains so many of the problems that economics has faced in recent years, such as the fact that hardly any economists foresaw the crisis of 2007-08.

“Compared to this fictional world of econs, humans do a lot of misbehaving, and that means that economic models make a lot of bad predictions, predictions that can have much more serious consequences than upsetting a group of students,”, Thaler wrote.

Thaler, of the Booth School of Business at the University of Chicago, is one of the leading lights of behavioural economics, which looks at human behaviour the way it is, not how the textbooks imagine it to be.

We don’t always act out of our own long-term interest, for one thing. As consumers we will often go to extraordinary lengths to save a few pounds on a purchase, then think nothing of spending more than we saved driving all over town to compare prices.

We’ll sit through tedious movies because we feel that having paid for the ticket we should stay until the end, we’ll spend thousands on unused gym memberships, or we’ll waste the effort of an expensive dinner by gorging on cashew nuts beforehand.

As investors, we can be equally irrational. We tend to buy when prices are high and sell when they are low. We routinely second-guess the market and, constantly trade without thought to the cost of doing so. We bet on individual stocks and sectors, despite significant evidence that a diversified portfolio makes more sense.

Recognising the gap

It is evident that a sound theory of consumer or investor behaviour should start by recognising that we are imperfect beings who don’t always seek to maximise the financial outcome of each opportunity or think entirely rationally.

This gap between the opportunity available to us and what we ultimately receive is well documented. Carl Richards, a certified financial planner, has built an entire website of conceptual sketches around this idea, which he calls, appropriately, the Behaviour Gap.

Carl offers compelling visualisations of concepts such as the greed/buy, fear/sell cycle, the importance of taking small, achievable steps, or the need to focus on the intersection between things that matter and things we can control.

The annual Dalbar Quantitative Analysis of Investor Behaviour documents the costs of not considering these behavioural issues, with impulsive trading, lack of awareness of costs and concentrated portfolios leaving many investors well short of where they would have been had they just bought the market and held.

Accepting our differences

Of course, there also can be completely defensible reasons why we behave in a way that does not always match up with the pure economic theory. In his recent book The Psychology of Money: Timeless Lessons on Wealth, Greed and Happiness’, the writer Morgan Housel lists a few of them.

One of them is our formative experiences. If your parents or grandparents were raised during the Great Depression, for instance, it’s a fair bet that their attitudes to spending money, investing in stocks, or finding and keeping a job will differ to from your own.

“The challenge for us is that no amount of studying or open-mindedness can genuinely recreate the power of fear and uncertainty,”, Housel writes. “I can read about what it was like to lose everything during the Great Depression. But I don’t have the emotional scars of those who actually experienced it.”

It’s too early yet to tell, but it seems likely that those who started small businesses during the pandemic of the past year will have a significantly different appreciation of risk than those who launched firms before the crisis.

In other words, our views on money and risk are often personal and the result of our own disparate experiences.

The importance of advice

Traditional notions of ‘how to invest’ need to be mixed with reality. Yes, there are broad principles around discipline and diversification, about keeping costs low and maintaining your desired asset allocation, but there is not one perfect portfolio that is going to fit everyone.

We are all imperfect and idiosyncratic. We share many attributes, but none of us looks at the world exactly the same. We can misjudge things and fool ourselves, but our feelings about risk and uncertainty are real.

This explains why individual financial advice is so important. We take our hopes and aspirations, our fears and uncertainty, and we see how they can be moulded to some agreed long-term principles, adjusting the plan along the way.

There is no perfect score in this test. We’re all running our own race. But a good financial plan will always incorporate our own behaviour in the equation.

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Barry O'Neill is an Investment Director at Carbon and can be contacted at barry.oneill@carbonfinancial.co.uk

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The value of investments and the income derived from them can fall as well as rise. You may not get back what you invest.

This communication is for general information only and is not intended to be individual advice. It represents our understanding of law and HM Revenue & Customs practice. You are recommended to seek competent professional advice before taking any action.

Tax and Estate Planning Services are not regulated by the Financial Conduct Authority.

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