The evolutionary process hardwired humans with the ability to assess information quickly. Growls emanating from behind a bush = head the other direction. What suited us for survival, however, many times causes us to make counterproductive financial decisions. We are afflicted with numerous biases that cause us to overrule our rational selves. Our investment committee spends a fair amount of time contemplating these biases and evaluating our decison making process to make sure that we are not falling into traps set by our human behavior. Here are a few common behavioral biases that you may recognize in yourself (although it is our experience that they’re easier to recognize in others!):
Loss Aversion. Investors prefer an uncertain larger loss rather than realizing a certain smaller loss. This bias causes the investor to hold losing investments too long and to take increasing risks to try to gain back unrealized losses. To counter this bias, make sure to evaluate an investment on its expected return rather than by the price you paid for it.
Recency Bias. Recent events shade our forecast of the future. This bias causes investors to chase after last year’s hot investment and dump last year’s loser. The wise investor regularly consults the periodic table of investment returns to remind himself that past performance is not a reliable indicator of future results.
Availability Bias. The easier you can call something to mind, the more prevalent you judge it to be. Investors who clearly remember a bad experience investing in a particular asset class will tend to avoid that class in the future. Investors should comprehensively research and analyze potential investments to offset this bias.
Confirmation Bias. Investors tend to pay attention to information that supports their current outlook and to ignore information that contradicts it. To avoid this trap, make a concerted effort to read up on differing opinions.
These are just a few of the biases afflicting our fallen human condition. The successful investor uses a rules based decision making process and keeps track of investment decisions for later evaluation.
