Do you think behavior can spread virally?
Information, diseases, behavior, attitudes, fashion… Why it happens? How it occurs? What variables are involved in the dissemination process?
The viral behavior can be explained by a combination of several theories, from SNA (Social Network Analysis), Social Capital, the Friendship Paradox, Strenght of the Weak Ties, Word-of-Mouth, etc. This is certainly my favorite subject.
For those of you interested in this subject, do check the presentation of Nicholas Christakis on TED.