Altruism (biology) most common mechanism of reciprocity in nature, this kind is present in humans, primates, and many other mammals. Also known as, "If you're nice, I'll be nice too." This mechanism of reciprocity is similar to the heuristic of the golden rule, "Treat others how you would like to be treated." Parties mirror one another's attitudes, exchanging favors on the spot. Instant attitudinal reciprocity occurs among monkeys, and people often rely on it with strangers and acquaintances. Also known as, "what have you done for me lately?" Individuals keep track of the benefits they exchange with particular partners, which helps them
Alliance for International Educational and Cultural Exchange believes that participants who engage in exchange programs and those who encounter exchange program participants experience a change in understanding of other cultures. Secondly, these types of exchanges allow for participants and others to grow and to develop new or refined skills. The third role is economic as people brought to the United States necessarily expend money and benefit local economies. The final role that the Alliance states is integral to exchange programs is in leadership training. The Alliance believes that exchange programs advance leadership skills that may be used in the future in finding solutions to the critical problems