The purpose of this research is to examine whether or not people prefer the trigger strategy when given a chance to choose between various kinds of strategies in a social dilemma (SD) situation. The experiment was run as a 4-person iterated SD situation with three conditions. The results show that Ss did not select morefrequently the trigger strategy in either condition. These results are inconsistent with the one found in an ealier study (Watabe, 1992). Changes in experimental design are needed in order to examine possible reasons of this inconsistency.
