Researchers have conceptualized the problem-solving approach to include cooperation between negotiators in order to achieve mutually beneficial outcomes. The observed cooperation between parties embodies the concept of positive reciprocity where negotiators match the cooperative bargaining strategy of their counterparts. Using this premise, the current study investigates reciprocity through the relationship between negotiators' perceptions of their counterpart's cooperative behaviors and their own reported behaviors. The mitigating effect of individualism-collectivism on the above relationship is also explored. The findings provide empirical evidence that negotiators' perceptions of their counterpart's cooperative behaviors are positively related to their own strategy. This relationship was consistently supported across five groups of business negotiators: Canadian Anglophone, Greek, Mexican, Filipino, and American. However, this positive reciprocal relationship is negated when the negotiator comes from an individualistic-type culture.