  Peer-To-Peer (P2P) networks are self-organizing, distributed systems, with no
centralized authority or infrastructure. Because of the voluntary
participation, the availability of resources in a P2P system can be highly
variable and unpredictable. In this paper, we use ideas from Game Theory to
study the interaction of strategic and rational peers, and propose a
differential service-based incentive scheme to improve the system's
performance.
