The Success Equation: Untangling Skill And Luck... May 2026

Most of life's competitive arenas—business, investing, and team sports like hockey or football—sit somewhere in the middle. The "Losing on Purpose" Test

Activities where individual effort has no impact on the outcome. Examples include lotteries and roulette. The Success Equation: Untangling Skill and Luck...

A simple heuristic to determine where an activity falls is to ask: A simple heuristic to determine where an activity

Rather than seeing success as binary (either talent or chance), Mauboussin places activities on a spectrum: At its core, the theory argues that most

Activities where the best performer almost always wins. Examples include running races, swimming, and chess.

The "Success Equation" is a framework popularized by Michael Mauboussin in his book The Success Equation to help us understand why some people or companies win while others fail. At its core, the theory argues that most outcomes are a blend of two distinct forces: (the ability to apply knowledge effectively) and Luck (random events where a different outcome could have reasonably occurred). The Luck-Skill Continuum