Charlie Munger, the vice-chairman of Berkshire Hathaway, is a strong advocate for using mental models to improve decision-making and investing. Although he has not provided an exhaustive list, here are some key mental models from various disciplines that he has discussed or applied to investments:

Circle of Competence (Investing):

• Invest in businesses and industries you understand well.

• Focus on your areas of expertise and avoid ventures beyond your knowledge.

Margin of Safety (Finance):

• Purchase assets at a significant discount to their intrinsic value.

• This approach provides a buffer against potential losses and errors in valuation.

Opportunity Cost (Economics):

• Evaluate potential investments by comparing them to other available options.

• Choose the most attractive opportunities based on the returns and risks of all alternatives.

Mr. Market (Behavioral Finance):

• Treat the stock market as an emotional partner who sometimes offers irrational prices.

• Profit from market inefficiencies by staying rational and disciplined.

Moats and Competitive Advantage (Business Strategy):

• Invest in companies with durable competitive advantages that protect their market position.

• These advantages can include brand strength, economies of scale, or proprietary technology.

Scarcity and Social Proof (Psychology):

• Be aware of the biases that drive human behavior, such as the desire to follow the crowd or the attraction to scarce resources.

• Avoid being influenced by these biases in your investment decisions.

Inversion (Problem Solving):

• Approach problems by considering their opposite or by working backward.

• Identify potential pitfalls and challenges before making an investment.

Latticework of Mental Models (Interdisciplinary Thinking):

• Build a diverse set of mental models from various disciplines to help you understand complex situations.

• Apply these models in a holistic manner to improve your decision-making and investing abilities.

I found these helpful and hope it helps you all as well!