The allais paradox

Abstract

The Allais Paradox, first described by Maurice Allais in 1953, highlights a discrepancy between human decision-making and expected utility theory. The paradox arises when individuals express a preference for a certain outcome over a probabilistic outcome with a higher expected value (e.g., preferring $24,000 with certainty over a 33/34 chance of winning $27,000) but simultaneously prefer a lower probability of winning a higher amount in a different scenario (e.g., preferring a 33% chance of winning $27,000 over a 34% chance of winning $24,000). This pattern of preferences violates the Axiom of Independence, a fundamental principle of expected utility theory. The paradox demonstrates that human choices may not always align with the predictions of rational decision theory, and it raises questions about the limitations of traditional models of utility maximization. – AI-generated abstract