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The rich-get-richer mechanism (agents increase their ``wealth'' randomly at a rate proportional to their holdings) is often invoked to explain the Pareto power-law distribution observed in many physical situations, such as the degree…

综合金融 · 定量金融 2008-12-02 James P. Bagrow , Jie Sun , Daniel ben-Avraham

This paper deals with the size of the spanning tree of p randomly chosen nodes in a binary search tree. It is shown via generating functions methods, that for fixed p, the (normalized) spanning tree size converges in law to the Normal…

概率论 · 数学 2007-05-23 Alois Panholzer , Helmut Prodinger

In this paper, the joint distribution of the sum and maximum of independent, not necessarily identically distributed, nonnegative random variables is studied for two cases: i) continuous and ii) discrete random variables. First, a recursive…

概率论 · 数学 2024-07-01 Christos N. Efrem

Detailed empirical studies of publicly traded business firms have established that the standard deviation of annual sales growth rates decreases with increasing firm sales as a power law, and that the sales growth distribution is…

物理与社会 · 物理学 2008-12-02 A. O. Schweiger , S. V. Buldyrev , H. E. Stanley

The minimization of Fisher's information (MFI) approach of Frieden et al. [Phys. Rev. E {\bf 60} 48 (1999)] is applied to the study of size distributions in social groups on the basis of a recently established analogy between scale…

物理与社会 · 物理学 2009-09-16 A. Hernando , D. Villuendas , C. Vesperinas , M. Abad , A. Plastino

We introduce a new statistical test of the hypothesis that a balanced panel of firms have the same growth rate distribution or, more generally, that they share the same functional form of growth rate distribution. We applied the test to…

数据分析、统计与概率 · 物理学 2015-03-19 Josè T. Lunardi , Salvatore Miccichè , Fabrizio Lillo , Rosario N. Mantegna , Mauro Gallegati

The distribution of the sum of dependent risks is a crucial aspect in actuarial sciences, risk management and in many branches of applied probability. In this paper, we obtain analytic expressions for the probability density function (pdf)…

统计方法学 · 统计学 2017-05-02 José María Sarabia , Emilio Gómez-Déniz , Faustino Prieto , Vanesa Jordá

The theory of finite-size scaling explains how the singular behavior of thermodynamic quantities in the critical point of a phase transition emerges when the size of the system becomes infinite. Usually, this theory is presented in a…

统计力学 · 物理学 2017-02-08 Alvaro Corral , Rosalba Garcia-Millan , Francesc Font-Clos

The mean size of exponentially dividing E. coli cells cultured in different nutrient conditions is known to depend on the mean growth rate only. However, the joint fluctuations relating cell size, doubling time and individual growth rate…

Frullani's integral dates from 1821, but a probabilistic interpretation of it has never been made. In this paper, Frullani's integral formula is shown to result from mixing a lifetime distribution by allowing the logarithm of the scale…

统计方法学 · 统计学 2014-08-18 Rose Baker

We consider the problem of estimating the joint distribution of a continuous-time perpetuity and the underlying factors which govern the cash flow rate, in an ergodic Markov model. Two approaches are used to obtain the distribution. The…

概率论 · 数学 2016-01-18 Constantinos Kardaras , Scott Robertson

Merging asymptotic expansions of arbitrary length are established for the distribution functions and for the probabilities of suitably centered and normalized cumulative winnings in a full sequence of generalized St. Petersburg games,…

概率论 · 数学 2009-10-26 Gyula Pap

Let $M$ be a smooth manifold and $X\subset M$ a closed subset of $M$. In this paper, we introduce a natural condition of \emph{moderate growth} along $X$ for a distribution $t$ in $\mathcal{D}^\prime(M\setminus X)$ and prove that this…

数学物理 · 物理学 2014-11-14 Nguyen Viet Dang

We consider Gibbs distributions on finite random plane trees with bounded branching. We show that as the order of the tree grows to infinity, the distribution of any finite neighborhood of the root of the tree converges to a limit. We…

概率论 · 数学 2010-03-04 Yuri Bakhtin

The power-law distribution is ubiquitous and its mechanism seems to be various. We find a general mechanism for the distribution. The distribution of a geometrically growing system can be approximated by a log - completely squared chi…

统计力学 · 物理学 2024-06-19 Chol-Jun Kim

We offer further results on a general size-biased distribution related to the Riemann xi-function we presented in [9] using the work of Ferrar. Curious properties associated with its expected value are presented, which are related to…

数论 · 数学 2026-04-14 Alexander E. Patkowski

A recent study by Wang {\it et al.}(arXiv:2309.01417) proposed a novel connection between the nature of the parton distribution function (PDF) and the characteristics of its moments. In this study, we apply these findings to analyze the…

高能物理 - 唯象学 · 物理学 2024-07-16 Xiaobin Wang , Zexin Wu , Minghui Ding , Lei Chang

Truncated Levy flights are stochastic processes which display a crossover from a heavy-tailed Levy behavior to a faster decaying probability distribution function (pdf). Putting less weight on long flights overcomes the divergence of the…

凝聚态物理 · 物理学 2009-11-10 I. M. Sokolov , A. V. Chechkin , J. Klafter

We introduce a stochastic model to explain a double power-law distribution which exhibits two different Paretian behaviors in the upper and the lower tail and widely exists in social and economic systems. The model incorporates fitness…

物理与社会 · 物理学 2011-04-25 D. D. Han , J. H. Qian , Y. G. Ma

In the last years, researchers have realized the difficulties of fitting power-law distributions properly. These difficulties are higher in Zipf's systems, due to the discreteness of the variables and to the existence of two representations…

数据分析、统计与概率 · 物理学 2022-11-29 Alvaro Corral , Isabel Serra , Ramon Ferrer-i-Cancho