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- W3180384258 abstract "We study the problem of Bayesian learning in a dynamical system involving strategic agents with asymmetric information. In a series of seminal papers in the literature, this problem has been investigated under a simplifying model where myopically selfish players appear sequentially and act once in the game, based on private noisy observations of the system state and public observation of past players’ actions. It has been shown that there exist information cascades where users discard their private information and mimic the action of their predecessor. In this paper, we provide a framework for studying Bayesian learning dynamics in a more general setting than the one described above. In particular, our model incorporates cases where players are non-myopic and strategically participate for the whole duration of the game, and cases where an endogenous process selects which subset of players will act at each time instance. The proposed framework hinges on a sequential decomposition methodology for finding structured perfect Bayesian equilibria (PBE) of a general class of dynamic games with asymmetric information, where user-specific states evolve as conditionally independent Markov processes and users make independent noisy observations of their states. Using this methodology, we study a specific dynamic learning model where players make decisions about public investment based on their estimates of everyone’s types. We characterize a set of informational cascades for this problem where learning stops for the team as a whole. We show that in such cascades, all players’ estimates of other players’ types freeze even though each individual player asymptotically learns its own true type." @default.
- W3180384258 created "2021-07-19" @default.
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- W3180384258 date "2018-01-01" @default.
- W3180384258 modified "2023-09-27" @default.
- W3180384258 title "Decentralized Bayesian Learning in Dynamic Games: A Framework to Study Informational Cascades" @default.
- W3180384258 doi "https://doi.org/10.2139/ssrn.3113825" @default.
- W3180384258 hasPublicationYear "2018" @default.
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