In this study, dormitory room and social group assignment data from a college are used to investigate peer effects on students’ decisions switch majors. Results reveal strong evidence of such at both the level. Most notably, level, dense concentration same-major roommates deters students switching majors; having one or two has no significant effect major switching, indicating nonlinearity Such ...

In this paper, we propose a reputation management scheme for partially decentralized peer-to-peer systems. The reputation scheme helps to build trust among peers based on their past experiences and feedback from other peers. Two selection advisor algorithms are proposed for helping peers to select the most trustworthy peer to download from. The proposed algorithms can detect malicious peers sen...