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We study the dynamics of a version of the batch minority game, with random external information and with different types of inhomogeneous decision noise (additive and multiplicative), using generating functional techniques \`{a} la De…

无序系统与神经网络 · 物理学 2009-11-07 A. C. C. Coolen , J. A. F. Heimel , D. Sherrington

The influence of a fixed number of agents with the same fixed behavior on the dynamics of the minority game is studied. Alternatively, the system studied can be considered the minority game with a change in the comfort threshold away from…

统计力学 · 物理学 2009-11-10 M. A. R. de Cara , F. Guinea

Using the Minority Game model we study a broad spectrum of problems of market mechanism. We study the role of different types of agents: producers, speculators as well as noise traders. The central issue here is the information flow :…

统计力学 · 物理学 2009-10-31 Damien Challet , Matteo Marsili , Yi-Cheng Zhang

Adaptive populations such as those in financial markets and distributed control can be modeled by the Minority Game. We consider how their dynamics depends on the agents' initial preferences of strategies, when the agents use linear or…

统计金融 · 定量金融 2009-11-13 H. M. Yang , Y. S. Ting , K. Y. Michael Wong

In this paper, we present a simple stock market model (the market game) which incorporates, as ab initio dynamics delayed majority dynamics, according to which agents (with heterogeneous strategies and price expectations) are rewarded if…

适应与自组织系统 · 物理学 2008-12-02 Yi Li , Robert Savit

We investigate different versions of the minority game, a toy model for agents buying and selling a commodity. The Hamming distance between the strategies used by agents to take decisions is introduced as an analytical tool to determine…

adap-org · 物理学 2009-10-31 R. D'hulst , G. J. Rodgers

Along with the energy transition, the energy markets change their organization toward more decentralized and self-organized structures, striving for locally optimal profits. These tendencies may endanger the physical grid stability. One…

理论经济学 · 经济学 2021-03-24 Tim Ritmeester , Hildegard Meyer-Ortmanns

We introduce a simple extension of the minority game in which the market rewards contrarian (resp. trend-following) strategies when it is far from (resp. close to) efficiency. The model displays a smooth crossover from a regime where…

无序系统与神经网络 · 物理学 2009-11-10 A. De Martino , I. Giardina , M. Marsili , A. Tedeschi

The dynamics of minority games with agents trading on different time scales is studied via dynamical mean-field theory. We analyze the case where the agents' decision-making process is deterministic and its stochastic generalization with…

无序系统与神经网络 · 物理学 2009-11-10 Andrea De Martino

We study a variation of the minority game. There are N agents. Each has to choose between one of two alternatives everyday, and there is reward to each member of the smaller group. The agents cannot communicate with each other, but try to…

交易与市场微观结构 · 定量金融 2015-05-27 Deepak Dhar , V. Sasidevan , Bikas K. Chakrabarti

We review the recent approaches to modelling financial markets based on multi-agent systems. After a brief summary of the basic stylised facts observed in real-market time-series we discuss some simple agent-based systems which are…

物理与社会 · 物理学 2008-12-02 Tobias Galla , Giancarlo Mosetti , Yi-Cheng Zhang

We propose a new model of minority game with so-called smart agents such that the standard deviation and the total loss in this model reach the theoretical minimum values in the limit of long time. The smart agents use trail and error…

统计力学 · 物理学 2008-12-02 Yan-Bo Xie , Bing-Hong Wang , Chin-Kun Hu , Tao Zhou

We investigate the dynamics of the choice of an active strategy in the minority game. A history distribution is introduced as an analytical tool to study the asymmetry between the two choices offered to the agents. Its properties are…

adap-org · 物理学 2009-10-31 R. D'Hulst , G. J. Rodgers

A brief review is given of the minority game, an idealized model of a market of speculative agents, and its complex many-body behaviour. Particular consideration is given to the consequences and implications of correlations between…

无序系统与神经网络 · 物理学 2009-11-10 David Sherrington , Tobias Galla

We study a class of games which model the competition among agents to access some service provided by distributed service units and which exhibit congestion and frustration phenomena when service units have limited capacity. We propose a…

计算机科学与博弈论 · 计算机科学 2015-08-19 F. Altarelli , A. Braunstein , L. Dall'Asta

We explore the effect of discounting and experimentation in a simple model of interacting adaptive agents. Agents belong to either of two types and each has to decide whether to participate a game or not, the game being profitable when…

物理与社会 · 物理学 2009-11-13 Damien Challet , Andrea De Martino , Matteo Marsili

In this paper we study the continuum time dynamics of a stock in a market where agents behavior is modeled by a Minority Game and a Grand Canonical Minority Game. The dynamics derived is a generalized geometric Brownian motion; from the…

交易与市场微观结构 · 定量金融 2013-05-17 Matteo Ortisi , Valerio Zuccolo

We present a theory which describes a recently introduced model of an evolving, adaptive system in which agents compete to be in the minority. The agents themselves are able to evolve their strategies over time in an attempt to improve…

凝聚态物理 · 物理学 2009-10-31 T. S. Lo , P. M. Hui , N. F. Johnson

Generalization of the minority game to more than one market is considered. At each time step every agent chooses one of its strategies and acts on the market related to this strategy. If the payoff function allows for strong fluctuation of…

交易与市场微观结构 · 定量金融 2011-05-12 Karol Wawrzyniak , Wojciech Wislicki

We calculate the standard deviation of (N1-N0), the difference of the number of agents choosing between the two alternatives of the minority game. Our approach is based on two approximations: we use the whole set of possible strategies,…

凝聚态物理 · 物理学 2009-11-07 Ines Caridi , Horacio Ceva
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