Charlie Munger: Investment philosophy

Investment philosophy[edit]

"Elementary, worldly wisdom"[edit]

In multiple speeches, and in the book Poor Charlie's Almanack, Munger has introduced the concept of "elementary, worldly wisdom" as it relates to business and finance. Munger's worldly wisdom consists of a set of mental models framed as a latticework to help solve critical business problems.^[3]

Munger, along with Buffett, is one of the main inspirations behind the book Seeking Wisdom: From Darwin to Munger. Author Peter Bevelin explained his key learnings from both Munger and Buffett in a 2007 interview: "How to think about businesses and investing, how to behave in life, the importance of ethics and honesty, how to approach problems but foremost how to reduce the chance of meeting problems." Bevelin stated that previously, he "was lacking the Munger ability to un-learn my own best-loved ideas".^[10]

Munger states that high ethical standards are integral to his philosophy; at the 2009 Wesco Financial Corporation annual meeting he said, "Good businesses are ethical businesses. A business model that relies on trickery is doomed to fail."^[11] During an interview and Q&A session at Harvard-Westlake School on January 19, 2010, Munger referred to American philosopher Charles Frankel in his discussion on the financial crisis of 2007–08 and the philosophy of responsibility. Munger explained that Frankel believed:

...the system is responsible in proportion to the degree that the people who make the decisions bear the consequences. So to Charlie Frankel, you don’t create a loan system where all the people who make the loans promptly dump them on somebody else through lies and twaddle, and they don’t bear the responsibility when the loans are good or bad. To Frankel, that is amoral, that is an irresponsible system.^[12]

Munger is critical of cryptocurrencies, referring to Bitcoin as "poison".^[13] In early 2018 he likened bitcoin to "harvested baby brains" in an interview with Yahoo Finance.^[14]

Lollapalooza effect[edit]

Munger uses the term "Lollapalooza effect" for multiple biases, tendencies or mental models acting at the same time in the same direction. With the Lollapalooza effect, itself a mental model, the result is often extreme, due to the confluence of the mental models, biases or tendencies acting together, greatly increasing the likelihood of acting irrationally.^[15]

During a talk at Harvard in 1995 entitled The Psychology of Human Misjudgment, Munger mentions Tupperware parties and open outcry auctions, where he explained "three, four, five of these things work together and it turns human brains into mush,"^[16][17] meaning that normal people will be highly likely to succumb to the multiple irrational tendencies acting in the same direction. In the Tupperware party, you have reciprocation, consistency and commitment tendency, and social proof. (The hostess gave the party and the tendency is to reciprocate; you say you like certain products during the party so purchasing would be consistent with views you've committed to; other people are buying, which is the social proof.) In the open outcry auction, there is social proof of others bidding, reciprocation tendency, commitment to buying the item, and deprivation super-reaction syndrome, i.e. sense of loss. The latter is an individual's sense of loss of what he believe should be or is his. These biases often occur at either conscious or subconscious level, and in both microeconomic and macroeconomic scale.