Investing for Survival
12
things I learned from Morgan Housel: Part 9
9. “It can be difficult to tell the difference between
luck and skill in investing.”
Investing
involves both skill and luck. Sorting out how much of a given result is skill
versus luck is neither easy or always possible. The very best books on this
topic have been written by Michael Mauboussin, including The Success Equation. Howard Marks also has useful view on the difference
between luck and skill and investing: “Success in investing has two aspects.
The first is skill, which requires you to be technically proficient. Technical
skills include the ability to find mispriced securities (based on capabilities in
modeling, financial statement analysis, competitive strategy analysis, and
valuation all while sidestepping behavioral biases) and a good framework for
portfolio construction. The second aspect is the game in which
you choose to compete. You want to find games where your skill is better than
the other players. Your absolute skill is not what matters; it’s your relative
skill.” Warren Buffet describes the object of the process simply: “Take the probability
of loss times the amount of possible loss from the probability of gain times
the amount of possible gain. That is what we’re trying to do. It’s imperfect
but that’s what it’s all about.”
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