a. This WP continues investigations in WP 84-3 and 84-10. The authors report an experiment in which they varied the expected likelihood that an advantaged central actor would punish others for attempting to change an inequitable reward structure. Results showed that attempts to change the structure were inversely proportional to the expected likelihood of a penalty, even though the central actor never expressed preferences, demanded compliance, promised rewards, or threatened penalties. This TR was published by the authors (1988).