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
Mutual exchange Mutual exchange The term mutual exchange describes the ability of two (or more) tenants in the public housing sector to move house by swapping their homes. Mutual exchange is possible in some countries, such as the UK and Sweden. Other terms used for this are "home swap" or "homeswap". To move home, both tenants must have permission of their landlords. Landlords will normally only grant an exchange if a number of criteria are met. These include: A mutual exchange may involve more than two tenants. The largest reported swap in England has involved a group of 6 tenants swapping their