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Know What You Don't Know (and Can't Know)
By: Stephen W. Spencer, CIMA®, Senior Consultant

It’s very easy to get caught up in the headlines and wonder about the impact on your portfolio: When are interest rates heading higher? What’s the next move for oil prices? Will Europe slip back into recession? Investors frequently read these stories then form strong opinions about what’s going to happen next. As the field of behavioral finance indicates, however, our emotions habitually lead us in the wrong direction when it comes to investing.

Behavioral finance represents the intersection of economics and psychology and seeks to explain why people make financial decisions often times irrationally. Our most recent book, Nonprofit Investing: Effective Investment Strategies and Oversight (Wiley & Sons, 2012), details several concepts and biases. Many of these concepts such as anchoring, herd behavior, confirmation and hindsight bias, among others, can be very real and we’ve all likely fallen prey to these at one time or another. They can subconsciously influence our thought process and decision-making.


Data from the most recent Dalbar study on investor returns suggests that the average investor’s performance significantly lags that of major stock and bond indices over time, most likely because biases lead to poor timing and selection in investment decisions (Figure 1).
But it’s not just the average investor that gets it wrong. Even many of the brightest minds have a poor track record of correct predictions about the markets. For many years The Wall Street Journal has surveyed economists about interest rates. In December 2013, 45 of 46 economists surveyed forecast higher interest rates in 2014, with an average rate increase of 0.6% predicted for the 10-year U.S. Treasury bond. Not only did the yield not increase by that amount in 2014, it actually fell by nearly 1% for the year!  

Moreover, a study by two professors from North Carolina State University (Mitchell and Pearce, 2005) looked at The Wall Street Journal economists survey data over the 20-year period from 1982-2002 and found that not only was the predicted magnitude of interest rate change usually incorrect, only about 1/3 of the economists surveyed were able to correctly predict the direction of change in interest rates more than 50% of the time. The authors concluded that none predicted the direction of interest rate changes more accurately than chance.   

The reality is that the direction of the stock market, interest rates and currencies for this year, or any other are all unknowable. There may be many well-informed opinions and entirely logical explanations supporting various predictions but a look at market history tells us that even the most seemingly obvious scenarios don’t often play out exactly as “everyone knows” they will. The actual timing and magnitude of anticipated market movements are simply too unpredictable to have a high probability of success when attempting to then implement short-term portfolio changes.


Rather than focus meaningful time and energy on what is unknowable in the short run, we suggest investors focus on the things they can identify with greater clarity and allow those factors to drive investment strategy decisions. These include:
  1. Identify “The Three Levers”: what are the anticipated inflows, outflows and required return to meet the long-term mission and goals? These three are absolutely interrelated (e.g. higher anticipated outflows often means that either higher inflows or higher returns are required to meet mission).
  2. Understand the ability and willingness of the Committee/organization to accept risk (volatility) in the portfolio in order to meet long-term goals. If the long-term view can’t be taken, consider taking significant risk out of the portfolio. Time and broad diversification can greatly improve the odds of success when assuming portfolio risk.    

Another important ingredient to setting a long-term investment strategy is incorporating reasonable, unbiased long-term capital markets expectations. DiMeo Schneider & Associates, L.L.C. extends significant resources and effort into our annual 10-year capital market assumptions for return, risk and correlation. Various methodologies are incorporated with the aim of producing unbiased estimates which represent the midpoint of probabilities for each of the asset classes over the next 10 years. Importantly, these estimates and the portfolio mixes produced by our proprietary Frontier Engineer asset allocation tool account for the uncertainly that is inherent even in 10-year assumptions.  The output is not overly reliant on our forecasts being precise over 10 years; rather, built-in uncertainty adjustments assume that these assumptions will be off to some degree. The model considers even extreme outcomes and assigns appropriate probabilities to each. The subsequent benefit from this approach is output that is more intuitive, less input sensitive and provides a real-world view of portfolio risks and opportunities.
 
While short-term market views and predictions are always interesting to read, resist the temptation to react swiftly to them. Recognize that even the most well-reasoned and educated opinions regularly prove to be incorrect in the short run and time spent attempting to guess unknowable outcomes is not terribly productive. Successful long-term investors adhere to the following:
  1. Ignore the “noise” and focus on the long-term view.
  2. Broadly diversify and assume portfolio risk only as necessary to help achieve the long-term required return.
  3. Adjust course periodically based on changes in circumstances and longer-term market expectations.


For more information, please contact any of the consultants at DiMeo Schneider & Associates, L.L.C. 
           
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