Using a representative longitudinal survey of U.S. teenagers, we investigate how peer racial composition in high school affects individual turnout young adults. We exploit across-cohort, within-school differences composition. One standard deviation increase the diversity index leads to 2.2 percent probability being registered vote seven years later and 2.6 higher voting six later. These effects...

A Peer-to-Peer (P2P) system relies on the cooperation of the peers and the contributions of their resources. To motivate autonomous peers share their resources, the system needs to support effective resource allocation strategies with respect to peers’ task priorities, and their personal information about valuation. However, peers may tend to be selfish for saving their limited resources and ac...