ABSTRACT
In general communication has been shown to increase cooperation. This chapter investigates the effect of specific, explicit communications over a large number of moves when the stooge is playing cooperative strategies, non-cooperative strategies and a tit-for-tat strategy. The experimental situation, including the payoff matrix, is the same as the one described yesterday. The chapter considers the overall effect of communication as well as that of individual communications, with all strategies combined. It assesses the effect of individual communications, taking one strategy at a time. In general, substantial increases in cooperation can be seen with each communication when compared with the No Communication Condition for men as well for women. The overall affect of communication was to increase cooperation regardless of which communication was sent. The communication which increased cooperation most among women, as compared to the No Communication Condition, was Promise.
