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UCL Department of Economics

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Theory/Experimental Seminar - Moritz Meyer-ter-Vehn (UCLA)

25 April 2023, 4:30 pm–6:00 pm

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Experimentation in Networks

Event Information

Open to

All

Organiser

Duarte Goncalves

Abstract: We introduce a model of strategic experimentation on social networks where forward-looking agents learn from their own and neighbors’ successes. In equilibrium, private discovery is followed by social diffusion. Social learning crowds out own experimentation, so total information decreases with network density; we determine density thresholds below which agents asymptotically learn the state. In contrast, agent welfare is single-peaked in network density, and achieves a second-best benchmark level at intermediate levels that achieve a balance between discovery and diffusion. We also show how learning and welfare differ across directed, undirected and clustered networks

Paper

Location: 118 Chandler House or Zoom.

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