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Social Contagion and Trends. When and why do cultural tastes catch on and become popular?Clothing (Livestrong bands and striped shirts)Policies (whole" math and Six Sigma)Catchphrases (sweet" and phat")Behaviors (wearing sideburns or voting)Attitudes (indie rock is in, hip-hop is out). Why
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1. Divergence in Cultural Practices:Tastes as Signals of Identity Jonah Berger Stanford University