Three models of reciprocity are discussed that are grounded in the idea that cooperation is no less crucial for human evolution than competition and survival of the fittest.
![Bridge over ocean](/-/media/images/hero/rpc-theme-heros/bridge-default.jpg?w=2560&hash=C67CE44B69F875C23628FEF2E3F26808)
Three models of reciprocity are discussed that are grounded in the idea that cooperation is no less crucial for human evolution than competition and survival of the fittest.