“I Got Nobody to Blame but Me”- Chris Stapleton
Jim Shellenberger, CFA | Financial Advisor
Sometimes we are our own worst enemy. When it comes to making financial decisions, our cognitive and emotional biases can help us or hinder us in making the best decisions. Our cognitive biases generally involve decision making based on concepts we establish in our minds. Our emotional biases typically involve spontaneous decision making based on how we feel when we make the decision. If you were to be studied by neuroeconomic researchers, they could likely pinpoint some of the cognitive and emotional biases that you experience in your financial decision making.
Neuroeconomics is a combination of neuroscience, economics, and psychology that seeks to explain the connection between investor behavior and the brain’s workings. Some behavioral biases may be explained through the study of serotonin and dopamine. Some researchers believe that low levels of serotonin are a link to anxiety, depression, and impulsiveness. Serotonin can be low for many reasons, but one is the failure of events to meet expectations. Therefore, theories exist that serotonin levels may play into prospect theory. What is prospect theory, and how does it affect me?
Prospect theory is the idea that investors tend to fear losses and, depending on the situation, will act differently to avoid them1. If an investor is sitting on a gain, they tend to be loss averse. This means that they become more conservative in thought and do not want to lose any money. On the other hand, if an investor is sitting on a loss, they tend to become risk-seeking. This means they are willing to assume a riskier position to avoid losses or, better yet, make up for the current loss. If failure to meet expectations causes lower serotonin and lower serotonin can lead to impulsiveness, this may explain why individuals become risk-seeking when experiencing a loss. To better understand this all, let us look at two different scenarios.
- You have an equal chance of making $100 or losing $70
- Most individuals will not take the bet. They are risk-averse and want a higher expected payoff than $15. (50%*$100 + 50%*(-$70) = $15) People would prefer the win to be twice the loss. This means it would have to be an equal chance of making $140 or losing $70 before people would consider the bet.
- Offered the choice of a sure loss of $75 or a 50/50 chance of winning $30 or losing $190.
- Most individuals are risk seekers when confronted with likely losses and will take the bet. They exhibit risk-seeking behavior by taking the 50/50 bet even though it has an expected payoff of –$80 (50%*$30 + 50%*(-$190) = -$80). The 50/50 bet is worse than the sure loss of $75. In the end, they see that they have a chance to be $105 better off than the sure loss. ($30- (-$75)=$105).
Although Prospect Theory can be considered a fallacy of the human brain, I believe it is partially an intuitive bias we have to protect ourselves. I say that because as an investment decreases in value, the gain needed to get it back to even increases exponentially. For example, if an investment drops 20%, it does not need to go up 20% to get back to even. Instead, it must increase by 25% to get back to even. This graph below is a great visual of how this relationship works.
The purpose of this graph is not to make us fearful of losses, because we know that when investing, we will experience losses. Instead, let the graph teach us something. We should view risk or potential for loss consistently over time. If we are sitting on a gain, we do not want to be so paralyzed by fear of loss that we become too conservative and miss future potential gains. If we are currently at a loss, we do not want to gamble to make up for that loss. If we keep losing, it will take more to recoup those losses. This relates to the sports phrase of assuming it is 0-0 at halftime – whether we are at a loss or gain, we should make the best decision for the future. Let us assume we are neither at a gain or loss when we go to make a decision.
At Frontier, we understand that people can and will fall susceptible to Prospect Theory. This is why we rely on our process built on fundamentals and attempt to remove emotion from the decision-making process. We want to try and remove as many biases as possible while understanding how people think and feel. We have a Downside First Focus when it comes to the investment process. In essence, Downside First Focus seeks to keep the risk level constant throughout time. We want to rely on the fundamentals and not become loss averse when sitting on gains or risk-seeking when sitting on losses. We want to make sure we let fundamentals and processes lead us and not emotion or speculation. If you ever have any questions about how our process works, please let me know so we can have a conversation to go over the details.
Next time you make an investment decision, take a second to see if you are falling susceptible to Prospect Theory. I know I have! If neuroeconomic researchers are right, I think we can blame serotonin. Maybe the answer is to go for a run to boost that serotonin level to avoid being impulsive in our decision making. However, in the meantime, Frontier has built a process to combat biases like this one.
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1 Kahneman, D., & Tversky, A. (1979). Prospect Theory: An Analysis of Decision under Risk. Econometrica, 47(2), 263-291. doi:10.2307/1914185
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