We studied economic choice behavior in capuchin monkeys by offering them to choose between two different foods available in variable amounts. When monkeys selected between familiar foods, their choice patterns were well-described in terms of relative value of the two foods. A leading view in economics and biology is that such behavior results from…

The greater part of this paper is dedicated to a non-technical discussion and criticism of the principles of Skinnerian behaviorism. Various aspects of the theory are examined, and its inability to deal with verbal behavior as a productive and creative activity is asserted. The author's point of view is that expressed by Noam Chomsky in his…