ABSTRACT
Introduction, 424. — A behavioral theory for optimizing in the prisoners’ dilemma, 425. — Experiments: method, 428. — Results and discussion, 430.— Conclusion and summary, 435.
* I am indebted to Miss Ruth Westheimer and Mrs. Barbara Isgur for experimental help, to George Hay, Thomas C. Schelling, Gerald Kraft, Bern hardt Lieberman, and Daniel Ellsberg for criticism.