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A Few Notes on The Little Book of Behavioral Investing

The Little Book of Behavioral Investing: How Not to Be Your Own Worst Enemy, author James Montier states: “I…highlight some of the most destructive behavioral biases and common mental mistakes that I’ve seen professional investors make. I’ll teach you how to recognize these mental pitfalls while exploring the underlying psychology behind the mistake. Then I show you what you can do to try to protect your portfolio from their damaging influence on your returns.” Biases he surveys include: action bias, bias for stories, confirmation bias, conformity bias (herding or groupthink), conservatism (including sunk cost fallacy), disposition effect, empathy gap, endowment effect, hindsight bias, illusion of control, inattentional blindness, information overload, loss aversion, myopia, overconfidence, overoptimism, placebo effect, self-attribution bias and self-serving bias). Value investing provides the context for discussion. Citing a number of studies, he concludes that:

“…we should do our investment research when we are in a cold, rational state–and when nothing much is happening in markets–and then pre-commit to following our own analysis and prepared action steps.”

“…fear causes people to ignore bargains when they are available in the market… The ‘battle plan for reinvestment’ is a schedule of pre-commitments…”

“We should get used to asking ‘Must I believe this?’ rather than… ‘Can I believe this?’” (more…)

40 Gems for Traders and Investors

  1. There are only three kinds of investors – those who think they are geniuses, those who think they are idiots, and those who aren’t sure.
  2. One of the clearest signals that you are wrong about an investment is having the hunch that you are right about it.
  3. Investors who focus on price levels earn between five and ten times higher profits than those who pay attention to price changes.
  4. The only way to be more certain it’s true is to search harder for proof that it is false.
  5. Business value changes over time, not all the time. Stocks are like weather, altering almost continually and without warning; businesses are like the climate, changing much more gradually and predictably.
  6. When rewards are near, the brain hates to wait.
  7. The market isn’t always right, but it’s right more often than it is wrong.
  8. Often, when we are asked to judge how likely things are, we instead judge how alike they are.
  9. Most of what seem to be patterns in stock prices are just random variations.
  10. In a rising market, enough of your bad ideas will pay off so that you’ll never learn that you should have fewer ideas. (more…)

Remember These 13 Points

  1. Predictions do not work as tomorrow is uncertain. We will only boast about things we have predicted right and talk nothing about the other half we got wrong.
  2. Skills can bring us moderate success. However, luck is needed to be a big success. (credit to Jon)
  3. We tend to credit our successes to good skills and blame our failures on poor luck.
  4. Some of us rely on luck (most unknowingly) by investing for high returns (and losses). A few of us will make big money but most of us will end up much poorer.
  5. Some of us deliberately limit the luck factor by choosing investment products with capital guarantee and guaranteed returns. None of us will make big money but none of us will be very much poorer.
  6. We need to know how much we can afford to lose (financially and emotionally) before deciding to be No. 4 or No. 5, or somewhere in between.
  7. We have many biases. The degree of success in investing or trading depends on how much we can keep our biases in check. No, we cannot remove our biases totally.
  8. Confirmation bias – we see what we want to see. We seek out evidence to validate our investment decision and ignore those that suggest otherwise.
  9. Availability bias – we are influenced by the things we observe. If people we knew made a lot of money through property investment, we will think that properties are the best investments in the world and develop a preference for it.
  10. Loss aversion bias – we want to be compensated for high returns before we decide to take the risk to invest. We often wait for markets move and show high returns before we want to invest. We are not interested if markets are not moving.
  11. Hindsight bias – we tend to say “I knew it” after an event has happened.
  12. Survivor-ship bias – we only get to hear stories of successes but many stories of failures were untold.  See No 2 and No 3.
  13. Most us do not know what we want in life. We think we will be happier with more money.

Wisdom From Jason Zweig

  1. There are only three kinds of investors – those who think they are geniuses, those who think they are idiots, and those who aren’t sure.

  2. One of the clearest signals that you are wrong about an investment is having the hunch that you are right about it.
  3. Investors who focus on price levels earn between five and ten times higher profits than those who pay attention to price changes.
  4. The only way to be more certain it’s true is to search harder for proof that it is false.
  5. Business value changes over time, not all the time. Stocks are like weather, altering almost continually and without warning; businesses are like the climate, changing much more gradually and predictably.
  6. When rewards are near, the brain hates to wait.
  7. The market isn’t always right, but it’s right more often than it is wrong.
  8. Often, when we are asked to judge how likely things are, we instead judge how alike they are.
  9. Most of what seem to be patterns in stock prices are just random variations.
  10. In a rising market, enough of your bad ideas will pay off so that you’ll never learn that you should have fewer ideas.
  11. The more often people watch an investment heave up and down, the more likely they are to trade in and out over the short term – and the less likely they are to earn a high return over the long term.
  12. Investing is not you versus “Them”. It’s you versus you.
  13. The single greatest challenge you face as an investor is handling the truth about yourself.
  14. Hindsight bias keeps you from feeling like an idiot as you look back – but it can make you act like an idiot as you look forward.
  15. Ignorance of our own ignorance haunts our financial judgments. (more…)

13 Things- Learned About Humans and the Financial Markets

  1. Predictions do not work as tomorrow is uncertain. We will only boast about things we have predicted right and talk nothing about the other half we got wrong.
  2. Skills can bring us moderate success. However, luck is needed to be a big success. (credit to Jon)
  3. We tend to credit our successes to good skills and blame our failures on poor luck.
  4. Some of us rely on luck (most unknowingly) by investing for high returns (and losses). A few of us will make big money but most of us will end up much poorer.
  5. Some of us deliberately limit the luck factor by choosing investment products with capital guarantee and guaranteed returns. None of us will make big money but none of us will be very much poorer.
  6. We need to know how much we can afford to lose (financially and emotionally) before deciding to be No. 4 or No. 5, or somewhere in between.
  7. We have many biases. The degree of success in investing or trading depends on how much we can keep our biases in check. No, we cannot remove our biases totally.
  8. Confirmation bias – we see what we want to see. We seek out evidence to validate our investment decision and ignore those that suggest otherwise.
  9. Availability bias – we are influenced by the things we observe. If people we knew made a lot of money through property investment, we will think that properties are the best investments in the world and develop a preference for it.
  10. Loss aversion bias – we want to be compensated for high returns before we decide to take the risk to invest. We often wait for markets move and show high returns before we want to invest. We are not interested if markets are not moving.
  11. Hindsight bias – we tend to say “I knew it” after an event has happened.
  12. Survivor-ship bias – we only get to hear stories of successes but many stories of failures were untold.  See No 2 and No 3.
  13. Most us do not know what we want in life. We think we will be happier with more money.
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