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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

The existence of a phase transition with diverging susceptibility in batch Minority Games (MGs) is the mark of informationally efficient regimes and is linked to the specifics of the agents' learning rules. Here we study how the standard…

物理与社会 · 物理学 2009-11-13 Tobias Galla , Andrea De Martino

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

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

In the standard minority game, each agent in the minority group receives the same payoff regardless of the size of the minority group. Of great interest for real social and biological systems are cases in which the payoffs to members of the…

适应与自组织系统 · 物理学 2009-10-31 Yi Li , Adrian VanDeemen , Robert Savit

We partially modify the rules of the Minority Game (MG) by introducing some degree of local information in the game, which is only available for some agents, called the interacting agents. Our work shows that, for small values of the new…

统计力学 · 物理学 2009-11-10 Ines Caridi , Horacio Ceva

The minority model was introduced to study the competition between agents with limited information. It has the remarkable feature that, as the amount of information available increases, the collective gain made by the agents is reduced.…

统计力学 · 物理学 2007-05-23 M. A. R. de Cara , O. Pla , 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

In this work the properties of minority games containing agents which try to winning all the time are studied by means of computational simulations. We have considered several ways of introducing above the rules clever players using…

无序系统与神经网络 · 物理学 2007-05-23 J. R. L. de Almeida , J. Menche

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 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

The effect of undecided agents is studied within populations in an opinion-forming dynamic, varying the number of undecided agents for different proportions of populations in a complete opinion-exchange network. The result is that the…

物理与社会 · 物理学 2021-06-23 Victor H. Blanco , Verónica Calderón

We study a version of the minority game in which one agent is allowed to join the game in a random fashion. It is shown that in the crowded regime, i.e., for small values of the memory size $m$ of the agents in the population, the agent…

统计力学 · 物理学 2009-11-10 K. F. Yip , T. S. Lo , P. M. Hui , N. F. Johnson

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 provide a theoretical description of the Minority Game in terms of crowd effects. The size of the fluctuations arising in the game is controlled by the interplay between crowds of like-minded agents and their anti-correlated partners…

凝聚态物理 · 物理学 2007-05-23 M. Hart , P. Jefferies , N. F. Johnson , P. M. Hui

The Minority Game is a simple yet highly non-trivial agent-based model for a complex adaptive system. Despite its importance, a quantitative explanation of the game's fluctuations which applies over the entire parameter range of interest…

凝聚态物理 · 物理学 2009-10-31 M. Hart , P. Jefferies , N. F. Johnson , P. M. Hui

The Minority Game framework was recently generalized to account for the possibility that agents adapt not only through strategy selection but also by diversifying their response according to the kind of dynamical regime, or the risk, they…

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

Minority games where groups of agents remember, react or incorporate information with different timescales are investigated. We study how their respective gains depend on their timescales for standard models and games with no public…

物理与社会 · 物理学 2009-11-11 Giancarlo Mosetti , Damien Challet , Yi-Cheng Zhang

We consider a class of games that are generalizations of the minority game, in that the demand and supply of the resource are specified independently. This allows us to study systems in which agents compete under different demand loads.…

适应与自组织系统 · 物理学 2009-11-07 R. Savit , S. A. Brueckner , H. V. D. Parunak , J. Sauter

We study the asymptotic macroscopic properties of the mixed majority-minority game, modeling a population in which two types of heterogeneous adaptive agents, namely ``fundamentalists'' driven by differentiation and ``trend-followers''…

统计力学 · 物理学 2009-11-10 A. De Martino , I. Giardina , G. Mosetti
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