Cooperation in primates and humans: closing the gap -- Kinship -- Practicing Hamilton's rule: kin selection in primate groups -- Kinship, competence and cooperation in primates -- Reciprocity -- Reciprocal altruism: 30 years later -- Simple and complex reciprocity in primates -- Reciprocal exchange in chimpanzees and other primates -- Causes, consequences and mechanisms of reconciliation: the role of cooperation -- Mutualism -- Cooperative hunting in chimpanzees: kinship or mutualism? -- Toward a general model for male-male coalitions in primate groups -- Cooperative breeding in mammals -- Non-offspring nursing in mammals: general implications from a case study on house mice -- Biological Markets -- Monkeys, markets and minds: biological markets and primate sociality -- Digging for the roots of trading -- Cooperation in Humans -- Reputation, personal identity and cooperation in a social dilemma -- Human cooperation from an economic perspective.