“The moral of the story: get a lobotomy and get rich.”
—Daniel Crosby
Since I now have money invested in the market, it’s time to face my humanity. Behavioral finance studies how psychology affects investors, and in “The Behavioral Investor” psychologist and asset manager Daniel Crosby investigates the ways in which our brains interfere with our investing success.
AAII Journal editor Charles Rotblut interviewed Crosby in 2019 and made me much more interested in how investors “ought to drive out emotion at every turn.” Crosby covers sociology, how investing affects the brain, physiology; ego, conservatism, attention, emotion and how investors can overcome all four; and how behavioral investing is rules-based. Each chapter ends with a “What’s the big idea?” section that summarizes main concepts.
Every time I go to check my Schwab account just to take a quick peek at my investments, I hear Vanguard founder John Bogle’s voice in my head: “When you get those regular retirement plan statements … don’t open them. Don’t peek. And when you do peek … be sure you have a cardiologist standing by. Because you will be so amazed at how much money you’ve accumulated over 20 or 30 or 40 or 50 years that you won’t believe it. You’ll probably faint, or something worse, and there will be a doctor there to revive you.”
I saw this sentiment echoed in “The Behavioral Investor,” as I suspected it would be: “Greg Davies shows that if you check your account daily, you’ll experience a loss just over 41% of the time. Pretty scary when we consider that human nature makes losses feel about twice as bad as gains feel good! Look once every five years and you would have only experienced a loss about 12% of the time and those peeking every 12 years would never have seen a loss. Twelve years may seem like a long time, but it’s worth remembering that the investment lifetime for most individuals is likely in the range of around 40 to 60 years.”
I used to think this was a more complicated idea, but it simply means that if you don’t look at your account constantly, you’re less likely to see your account in the red. I’ve read enough AAII articles—specifically on behavioral finance—to know that my emotions aren’t going to change the direction of the market, so why even get them involved? Don’t my emotions have enough work to do already? I’ll save it all up for 20, 30 or 40 years and then let it all out when I see how much money I’ve made!
Crosby also provides a helpful lesson on diversification: “Left to our own devices, we create portfolios in our own image. Americans buy American stocks. Steel workers are overweight manufacturing, while financiers double down on bank stocks. The timid fail to allocate to equities and the overconfident hold large positions in single stocks. Like an old married couple, our holdings start to look just like us, and there is great danger in that similarity.” He also encourages investors to avoid mutual fund manager Peter Lynch’s famous strategy of “buying what you know” in order to combat the tendency to make our portfolios “overweight [in] what we know.” Instead, he counsels us to “put in place a plan that diversifies across geographies and asset classes, both familiar and foreign.”
To really drive this strategy home, Crosby says, “By buying a diversified basket of index funds that covers a variety of asset classes, know nothing investors (who often know a great deal) are likely to beat more than 90% of active managers and have time to focus on pursuits more meaningful than compounding wealth.” I like those chances, especially as a “know nothing” beginning investor! (OK, maybe I know like three things now.)
Though Crosby doesn’t say specifically how often I should be checking my Schwab account, I’ll probably limit it to once a week as I start and then build up to once a month. I still want to know how my investments are doing, even if it’s just to say:
If you’re just getting started in investing, I wouldn’t recommend for this book to be number one on your reading list. I’m glad I worked up to it after reading more books on the basics, because if it was the first investing book I picked up I wouldn’t have been able to apply the lessons as well as I can now.
Stay tuned as I grow my investing library and read more books so that you don’t have to!
Read more book reviews next!
Broke Millennial by Erin Lowry
Financial Feminist by Tori Dunlap
Nice Girls Don’t Get Rich by Lois Frankel
Shop my investing library at Bookshop.org!
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