Ulric B. and Evelyn L. Bray Social Sciences Seminar

Series: Ulric B. and Evelyn L. Bray Social Sciences Seminar Series

Viral Social Learning

David McAdams, Professor of Business Administration (Fuqua School of Business) and Professor of Economics (Department of Economics), Duke University,

Abstract: An innovation (e.g., new product or idea) spreads like a virus, transmitted by those who have previously adopted it. We characterize equilibrium adoption dynamics and the resulting lifecycle of virally-spread innovations. Herding on adoption can occur but only early in the innovation lifecycle, and all virally-spread innovations eventually become obsolescent. A producer capable of advertising directly to consumers finds it optimal to wait and allow awareness to grow virally initially after launch. When most innovations would otherwise be high (low) quality absent any viral social learning, running an optimal-length viral campaign decreases (increases) equilibrium investment in innovation quality.

Written with Yangbo Song. For the seminar, Professor McAdams will be joined by guests Aniko Öry and Matt Jackson.

How to view the seminar:
Sign up for a free twitch.tv account, and tune in on Wednesdays at noon pacific time on twitch.tv/caltechecontheory. You will be able to ask questions on the twitch chat.

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For more information, please contact Letty Diaz by phone at 626-395-1255 or by email at [email protected].