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The concept of rationalizability has been used in the last fifteen years to study stability of equilibria in models with a continuum of agents such as competitive markets, macroeconomic dynamics and currency attacks. However, rationalizability has been formally defined in general settings only...
Persistent link: https://www.econbiz.de/10010573669
In games with strategic substitutes (GSS), convergence of the best-response dynamic starting from the inf (or sup) of the strategy space is equivalent to global stability (convergence of every adaptive dynamic to the same pure strategy Nash equilibrium). Consequently, in GSS, global stability...
Persistent link: https://www.econbiz.de/10010573656
learning. In repeat-choice situations, such learning brings value. If probabilities appear favorable (unfavorable), a choice …, decision makers often prove to be blind to the learning opportunities offered by uncertain probabilities. They forgo …, many make choices contrary to learning. Priming with optimal strategies offers little improvement. Such decision makers …
Persistent link: https://www.econbiz.de/10011049682
provide some necessary and some sufficient conditions for learning rules, that assume the agent has little prior and feedback …, Econometrica) who provide similar results for learning rules that seek higher expected payoffs. Our analysis reveals that a concern … for variance leads to quadratic transformations of payoffs to appear in the learning rule. …
Persistent link: https://www.econbiz.de/10011049685
We consider minimum-effort games played in an arbitrary network. For a family of imitation behavioral rules, including Imitate the Best and the Proportional Imitation Rule, we show that inefficient conventions arise independently of the interaction structure, if information is limited to the...
Persistent link: https://www.econbiz.de/10011049738
We revisit a result by Kim and Wong (2010) showing that under global interactions any strict Nash equilibrium of a coordination game can be supported as long run equilibrium by properly adding dominated strategies. We show that in the circular city model of local interactions and in the torus...
Persistent link: https://www.econbiz.de/10011049774
We develop a dynamic model of opinion formation in social networks when the information required for learning a …
Persistent link: https://www.econbiz.de/10011049780
under both regimes. We also present a learning model that allows players to learn about the other playersʼ strategies and … the prior distribution of the senderʼs type. We show that this learning model accurately accounts for all main features of …
Persistent link: https://www.econbiz.de/10011049808
We study coordination in dynamic global games with private learning. Players choose whether and when to invest …
Persistent link: https://www.econbiz.de/10011049831
How do people learn? We assess, in a model-free manner, subjectsʼ belief dynamics in a two-armed bandit learning … unsuccessful choices, than “update up” following successful choices. The profits from following the estimated learning and decision …-rational Bayesian learning model, but comparable to the profits from alternative non-Bayesian learning models, including reinforcement …
Persistent link: https://www.econbiz.de/10011049849