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We provide simple models for the utility function (or psychology) of an actor trading a multitude of goods for money. In this framework, money has no intrinsic consumption value, but is required as a medium of exchange. A collection of such…

物理与社会 · 物理学 2026-05-25 Robert S. Farr

Deterministic dynamical systems such as the baker maps are useful to shed light on some of the conditions verified by deterministic models in non-equilibrium statistical physics. We investigate a 2D dynamical system, enjoying a weak form of…

动力系统 · 数学 2014-06-27 Paolo A. Adamo , Matteo Colangeli , Lamberto Rondoni

The large-deviation method allows to characterize an ergodic counting process in terms of a thermodynamic frame where a free energy function determines the asymptotic non-stationary statistical properties of its fluctuations. Here, we study…

统计力学 · 物理学 2011-12-13 Adrian A. Budini

For a quantum-mechanical counting process we show ergodicity, under the condition that the underlying open quantum system approaches equilibrium in the time mean. This implies equality of time average and ensemble average for correlation…

量子物理 · 物理学 2007-05-23 Burkhard Kuemmerer , Hans Maassen

Necessary and sufficient conditions for a Markov chain to be ergodic are that the chain is irreducible and aperiodic. This result is manifest in the case of random walks on finite groups by a statement about the support of the driving…

量子代数 · 数学 2021-10-22 J. P. McCarthy

This paper studies the equilibrium price of an asset that is traded in continuous time between N agents who have heterogeneous beliefs about the state process underlying the asset's payoff. We propose a tractable model where agents maximize…

数理金融 · 定量金融 2020-03-26 Johannes Muhle-Karbe , Marcel Nutz , Xiaowei Tan

We study the Ergodic Properties of Random Walks in stationary ergodic environments without uniform ellipticity under a minimal assumption. There are two main components in our work. The first step is to adopt the arguments of Lawler to…

概率论 · 数学 2026-02-03 Ayan Ghosh

In this note we present two types of biological models which have interesting ergodic and chaotic properties. The first type are one-dimensional transformations, like a logistic map, which are used to describe the change in population size…

动力系统 · 数学 2024-02-05 Ryszard Rudnicki

The declining price anomaly states that the price weakly decreases when multiple copies of an item are sold sequentially over time. The anomaly has been observed in a plethora of practical applications. On the theoretical side, Gale and…

计算机科学与博弈论 · 计算机科学 2019-05-03 Vishnu V. Narayan , Enguerrand Prebet , Adrian Vetta

In standard Walrasian auctions, the price of a good is defined as the point where the supply and demand curves intersect. Since both curves are generically regular, the response to small perturbations is linearly small. However, a crucial…

交易与市场微观结构 · 定量金融 2017-01-04 Jonathan Donier , Jean-Philippe Bouchaud

We develop a cross-border market model for two countries based on a continuous trading mechanism, in which the transmission capacities that enable transactions between market participants from different countries are limited. Our market…

概率论 · 数学 2024-11-26 Cassandra Milbradt , Dörte Kreher

We develop a behavioral model for liquidity and volatility based on empirical regularities in trading order flow in the London Stock Exchange. This can be viewed as a very simple agent based model in which all components of the model are…

统计金融 · 定量金融 2008-12-02 Szabolcs Mike , J. Doyne Farmer

We define a class of dynamical maps on the quasi-local algebra of a quantum spin system, which are quantum analogues of probabilistic cellular automata. We develop criteria for such a system to be ergodic, i.e., to possess a unique…

凝聚态物理 · 物理学 2009-10-28 S. Richter , R. F. Werner

We establish nonparametric identification of auction models with continuous and nonseparable unobserved heterogeneity using three consecutive order statistics of bids. We then propose sieve maximum likelihood estimators for the joint…

计量经济学 · 经济学 2022-10-10 Yao Luo , Peijun Sang , Ruli Xiao

Ergodicity describes an equivalence between the expectation value and the time average of observables. Applied to human behaviour, ergodic theories of decision-making reveal how individuals should tolerate risk in different environments. To…

In the framework of statistical mechanics the properties of macroscopic systems are deduced starting from the laws of their microscopic dynamics. One of the key assumptions in this procedure is the ergodic property, namely the equivalence…

统计力学 · 物理学 2024-01-09 Marco Baldovin , Raffaele Marino , Angelo Vulpiani

A simple model of a buying-selling cycle is proposed. The model comprises two moves: a rational buying and a random selling. The notion of a profit intensity is introduced. Supply and demand curves and geometrical interpretation are…

凝聚态物理 · 物理学 2007-05-23 E. W. Piotrowski , J. Sladkowski

Classical cellular automata represent a class of explicit discrete spacetime lattice models in which complex large-scale phenomena emerge from simple deterministic rules. With the goal to uncover different physically distinct classes of…

统计力学 · 物理学 2026-05-27 Rustem Sharipov , Matija Koterle , Sašo Grozdanov , Tomaž Prosen

From a dynamical viewpoint, basic phase transitions of statistical mechanics can be regarded as a breaking of ergodicity. While many random models exhibiting such transitions at the thermodynamics limit exist, finite-dimensional examples…

数学物理 · 物理学 2019-09-25 Bastien Fernandez

A simple argument shows that eigenstates of a classically ergodic system are individually ergodic on coarse-grained scales. This has implications for the quantization ambiguity in ergodic systems: the difference between alternative…

量子物理 · 物理学 2009-08-14 L. Kaplan