Wanna Bet?


Decision Making, Investment Process, Luck, Probability, Psychology

Our intuition works like this:  Decision → Outcome (feedback) → Better Decision You burn your hand (outcome) after touching a hot stove (decision) or place your feet on the brake (decision) slows down the car (outcome), we use outcomes as feedback to change our actions and make better future decisions. But there’s a caveat.  In […]

Books for 2019


Books, Decision Making, Expected Value, Luck, Probability

Thinking in Systems Systems are like Russian nesting dolls—a system that has its own subsystems is also part of a larger system which is part of another larger system. As an example, a supply chain consists of many different industries where within each industry, sit hundreds of companies. Each of these companies is further made […]

9 Ways to Improve Forecast


Decision Making, Expected Value, Investment Process, Probability

Philip Tetlock spent 30 years exploring what makes someone a superforecaster (not the ones you see on TV). In his book Superforecasting, he distills his work into several commandments on how we can improve our judgment without any complex algorithm.   1. Triage: Focus on questions where your hard work is likely to pay off […]

15 Investing Lessons


Circle of Competence, Decision Making, Expected Value, Filter, Investment Process, Opportunity Cost, Portfolio, Probability, Psychology, Risk

1. Experience may not be a good teacher Most elderly who died in Hurricane Katrina dies not because of their health, but because of confidence and denial. They have survived several hurricanes over their lifetime, so they believe Hurricane Katrina is no exception. Experience can create a close attitude that prevents us from seeing things […]