In an experiment, players? ability to learn to cooperate in the repeated prisoner?s dilemma was substantially diminished when the payoffs were noisy, even though players could monitor one another?s past actions perfectly. In contrast, in one-time play against a succession of opponents, noisy...

This study examines whether cognitive-processing costs induce adaptive pre-decisional information search in children aged 7-8. Children aged 7-8 and 11-12 asked questions about objects kept in sealed boxes for the purpose of subsequent choice. Availability of a memory aid that recorded acquired...