全球智库信息集成服务系统(G2TT): Multistability of impact, utility and threshold concepts of binary choice models.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.physa.2008.08.006
	Multistability of impact, utility and threshold concepts of binary choice models.
	Ostasiewicz K; Tyc MH; Radosz A; Magnuszewski P; Goliczewski P; Hetman P; Sendzimir J
发表日期	2008
出处	Physica A: Statistical Mechanics and its Applications 387 (25): 6337-6352
出版年	2008
语种	英语
摘要	The decision making problem in the context of binary choice is considered by means of impact function, utility function and threshold model approaches. The properties of generalized impact function and utility function are examined; it is shown that these two approaches are equivalent. Their relation to the threshold model is studied and the correspondence between respective cumulative distribution functions is displayed. The stationary state corresponding to the thermodynamic equilibrium is determined within mean field approximation. Multistability of the stationary state is expressed in terms of the distribution function of the random variable of impact/utility function. The correspondence with statistical physics predictions for Ising model is discussed: logistic distribution leads to the mean-field result, i.e. Curie-Weiss approximation. Variations of the distribution functions and/or other model parameters, of social character, self-support, nonlinearity of social interactions, etc., would break the direct correspondence to statistical physics of Ising model, leading in particular cases to richer structure of the multistability.
主题	Risk and Vulnerability (RAV)
关键词	Binary choice model Impact function Utility function
URL	http://pure.iiasa.ac.at/id/eprint/8525/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/128806
推荐引用方式 GB/T 7714	Ostasiewicz K,Tyc MH,Radosz A,et al. Multistability of impact, utility and threshold concepts of binary choice models.. 2008.