In this article, the author incorporates fair play norms into the analysis of the basic performance-enhancing drug game proposed in 2004 by Haugen (in the Journal of Sports Economics). In some cases, it leads to a modification in the very nature of the game, switching it from a prisoner's...

Doping in sports is frequently presented as an example of Prisoner?s Dilemma. Whereas the repetition of the game does not alter fundamentally the incentives to doping, the existence of fair play norms may modify profoundly the very nature of the game. This article surveys the game-theoretical...