We consider the issue of the overreaction of financial markets to a sudden price change. In particular, we focus on the price and the population dynamics which follows a large fluctuation. In order to investigate these aspects from different perspectives we discuss the known results for empirical data, the Lux-Marchesi model and a minimal agent based model which we have recently proposed. We show that, in this framework, the presence of a overreaction is deeply linked to the population dynamics. In particular, the presence of a destabilizing strategy in the market is a necessary condition to have an overshoot with respect to the exogenously induced price fluctuation. Finally, we analyze how the memory of the agents can quantitatively affect this behavio

Reaction to extreme events in a minimal agent based model / Zaccaria, Andrea; Cristelli, Matthieu; Pietronero, Luciano. - STAMPA. - (2013), pp. 133-140. [10.1007/978-88-470-2553-0_9].

Reaction to extreme events in a minimal agent based model

PIETRONERO, Luciano
2013

Abstract

We consider the issue of the overreaction of financial markets to a sudden price change. In particular, we focus on the price and the population dynamics which follows a large fluctuation. In order to investigate these aspects from different perspectives we discuss the known results for empirical data, the Lux-Marchesi model and a minimal agent based model which we have recently proposed. We show that, in this framework, the presence of a overreaction is deeply linked to the population dynamics. In particular, the presence of a destabilizing strategy in the market is a necessary condition to have an overshoot with respect to the exogenously induced price fluctuation. Finally, we analyze how the memory of the agents can quantitatively affect this behavio
2013
Econophysics of Systemic Risk and Network Dynamics
9788847025523
02 Pubblicazione su volume::02a Capitolo o Articolo
Reaction to extreme events in a minimal agent based model / Zaccaria, Andrea; Cristelli, Matthieu; Pietronero, Luciano. - STAMPA. - (2013), pp. 133-140. [10.1007/978-88-470-2553-0_9].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/658826
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