Choice could not possibly reveal preference, as preference is understood in “folk psychology”, because choice depends on both preference and belief. The binary relation among objects of choice, which is revealed by choice and is misleadingly called “preference” by economists is not a satisfactory replacement. Revealed-preference theory is particularly destructive in game theory, where it empties the theory of all predictive and normative content, but in truth revealed-preference theory serves no useful purpose at all and ought to be given up.
