Ionel Popescu, Tushar Vaidya

Averaging plus learning models and their asymptotics

  • General Physics and Astronomy
  • General Engineering
  • General Mathematics
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We develop original models to study interacting agents in financial markets and in social networks. Within these models, randomness is vital as a form of shock or news that decays with time. Agents learn from their observations and learning ability to interpret news or private information in time-varying networks. Under general assumptions on the noise, a limit theorem is developed for the generalized averaging framework for certain type of conditions governing the learning. In this context, the agents’ beliefs (properly scaled) converge in distribution that is not necessarily normal. Fresh insights are gained not only from proposing a new setting for social learning models but also from using different techniques to study discrete-time random linear dynamical systems.

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