Cooperation and the prisoner's dilemma: towards testable models of mutualism versus reciprocity

摘要

For the purpose of distinguishing between mutualism and reciprocity in nature, recent work on the evolution of cooperation has both oversimplifed and undersimplified the distinction between these two categories of cooperation. This article addresses the resulting issues of model testability, clarifies the role of time and agues the category of 'pseudo-reciprocity' is an unnecessary complication.