Understanding Behavioral Finance Paradoxes

By Staff Reporters

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 “THE INVESTOR’S CHIEF problem—even his worst enemy—is likely to be himself.” So wrote Benjamin Graham, the father of modern investment analysis.

With these words, written in 1949, Graham acknowledged the reality that investors are human. Though he had written an 800 page book on techniques to analyze stocks and bonds, Graham understood that investing is as much about human psychology as it is about numerical analysis.

In the decades since Graham’s passing, an entire field has emerged at the intersection of psychology and finance. Known as behavioral finance, its pioneers include Daniel Kahneman, Amos Tversky and Richard Thaler. Together, they and their peers have identified countless human foibles that interfere with our ability to make good financial decisions. These include hindsight bias, recency bias and overconfidence, among others. On my bookshelf, I have at least as many volumes on behavioral finance as I do on pure financial analysis, so I certainly put stock in these ideas.

At the same time, I think we’re being too hard on ourselves when we lay all of these biases at our feet. We shouldn’t conclude that we’re deficient because we’re so susceptible to biases. Rather, the problem is that finance isn’t a scientific field like math or physics. At best, it’s like chaos theory. Yes, there is some underlying logic, but it’s usually so hard to observe and understand that it might as well be random. The world of personal finance is bedeviled by paradoxes, so no individual—no matter how rational—can always make optimal decisions.

As we plan for our financial future, I think it’s helpful to be cognizant of these paradoxes. While there’s nothing we can do to control or change them, there is great value in being aware of them, so we can approach them with the right tools and the right mindset.

Here are just seven of the paradoxes that can bedevil financial decision-making:

  1. There’s the paradox that all of the greatest fortunes—Carnegie, Rockefeller, Buffett, Gates—have been made by owning just one stock. And yet the best advice for individual investors is to do the opposite: to own broadly diversified index funds.
  2. There’s the paradox that the stock market may appear overvalued and yet it could become even more overvalued before it eventually declines. And when it does decline, it may be to a level that is even higher than where it is today.
  3. There’s the paradox that we make plans based on our understanding of the rules—and yet Congress can change the rules on us at any time, as it did just last year.
  4. There’s the paradox that we base our plans on historical averages—average stock market returns, average interest rates, average inflation rates and so on—and yet we only lead one life, so none of us will experience the average.
  5. There’s the paradox that we continue to be attracted to the prestige of high-cost colleges, even though a rational analysis that looks at return on investment tells us that lower-cost state schools are usually the better bet.
  6. There’s the paradox that early retirement seems so appealing—and has even turned into a movement—and yet the reality of early retirement suggests that we might be better off staying at our desks.
  7. There’s the paradox that retirees’ worst fear is outliving their money and yet few choose the financial product that is purpose-built to solve that problem: the single-premium immediate annuity.

How should you respond to these paradoxes? As you plan for your financial future, embrace the concept of “loosely held views.”

In other words, make financial plans, but continuously update your views, question your assumptions and rethink your priorities.

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DOES THE STOCK MARKET OVER-REACT?

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Some say it does!

ArtBy Arthur Chalekian GEPC

[Financial Consultant]

Some experts say it does. In 1985, Werner DeBondt, currently a professor of finance at DePaul University, and Richard Thaler, currently a professor of behavioral science and economics at the University of Chicago, published an article titled, Does The Stock Market Overreact? 

Professor Speak

The professors were among the first economists to study behavioral finance, which explores the ways in which psychology explains investors’ behavior. Classic economic theory assumes all people make rational decisions all the time and always act in ways that optimize their benefits. Behavioral finance recognizes people don’t always act in rational ways, and it tries to explain how irrational behavior affects markets.

Research 

DeBondt and Thaler’s research, which has been explored and disputed over the years, supported the idea that markets tend to overreact to “unexpected and dramatic news and events.” The pair found people tend to give too much weight to new information. As a result, stock markets often are buffeted by bouts of optimism and bouts of pessimism, which push stock prices higher or lower than they deserve to be.

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In a recent memo, Oaktree Capital’s Howard Marks reiterated his long-held opinion, “…In order to be successful, an investor has to understand not just finance, accounting, and economics, but also psychology.” He makes a good point.

Assessment 

When markets become volatile, it’s a good idea to remember the words of Benjamin Graham, author of The Intelligent Investor, who wrote, “By developing your discipline and courage, you can refuse to let other people’s mood swings govern your financial destiny. In the end, how your investments behave is much less important than how you behave.”

Conclusion

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OUR OTHER PRINT BOOKS AND RELATED INFORMATION SOURCES:

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