Prisoner’s Dilemma

In Kyle’s notes on the Berkshire Hathaway Annual Letters, the prisoner’s dilemma is the lens he applies to competitive pricing in commodity markets. Where the letters describe firms paying “crazy prices,” Kyle annotates the dynamic as a prisoner’s dilemma: Pricing in a commodity market is a game where each competitor, acting in its own short-term interest, undercuts or overpays in ways that leave everyone collectively worse off — even though restraint would benefit all. The framing turns Buffett’s observations about irrational industry pricing into a game-theory diagnosis.

Context: The prisoner’s dilemma is a canonical game-theory scenario in which two rational actors, unable to coordinate, each defect rather than cooperate — producing a worse joint outcome than mutual cooperation would. In commodity industries it explains price wars: every competitor’s individually rational move to cut price degrades margins for the whole sector.

Where this appears

• Berkshire Hathaway Annual Letters — Kyle’s notes frame commodity-market Pricing and “crazy prices” as a prisoner’s dilemma