Search Results - subject:"Lotka–Volterra"

A Dynamic Competition Analysis of Stock Markets

Hwang, Seong-Tae; Lee, Seong-Joon; Oh, Hyung-Sik - In: Journal of Emerging Market Finance 4 (2005) 1, pp. 1-25

This paper analyses the dynamic competition relationships of stock markets in Korea and the United States. The Lotka-Volterra …

Persistent link: https://www.econbiz.de/10010772773

A competition model for two CPU vendors

Tang, Yinan; Zhang, J.W. - In: Physica A: Statistical Mechanics and its Applications 348 (2005) C, pp. 465-480

reaction to the outer competition pressure. We propose a model developed from Lotka–Volterra competition model with time …

Persistent link: https://www.econbiz.de/10010590059

Scaling, cluster dynamics and complex oscillations in a multispecies Lattice Lotka–Volterra Model

Shabunin, A.V.; Efimov, A.; Tsekouras, G.A.; Provata, A. - In: Physica A: Statistical Mechanics and its Applications 347 (2005) C, pp. 117-136

The cluster formation in the cyclic (4+1)-Lattice Lotka–Volterra Model is studied by Kinetic Monte Carlo simulations on …

Persistent link: https://www.econbiz.de/10010591558

Evolutionary games and population dynamics

Hofbauer, Josef; Sigmund, Karl - 1998

Persistent link: https://www.econbiz.de/10008729690

THE EFFECTS OF VARYING PARAMETER VALUES AND HETEROGENEITY IN AN INDIVIDUAL-BASED MODEL OF PREDATOR-PREY INTERACTION

CHIVERS, WILLIAM J.; HERBERT, RIC D. - In: Advances in Complex Systems (ACS) 06 (2003) 03, pp. 441-456

An individual-based model which produces nonlinear predator-prey dynamics is described. The importance of individual variation to the stability of the population dynamics predicted by the model and the advantages of the individual-based approach to modelling ecological systems is discussed. The...

Persistent link: https://www.econbiz.de/10005047480

The two populations’ cellular automata model with predation based on the Penna model

He, Mingfeng; Lin, Jing; Jiang, Heng; Liu, Xin - In: Physica A: Statistical Mechanics and its Applications 312 (2002) 1, pp. 243-250

In Penna's single-species asexual bit-string model of biological ageing, the Verhulst factor has too strong a restraining effect on the development of the population. Danuta Makowiec gave an improved model based on the lattice, where the restraining factor of the four neighbours take the place...

Persistent link: https://www.econbiz.de/10010873898

Defining strategies to win in the Internet market

López, Luis; Sanjuán, Miguel A.F. - In: Physica A: Statistical Mechanics and its Applications 301 (2001) 1, pp. 512-534

This paper analyzes a model for the competition dynamics of web sites in the Internet, based on the Lotka–Volterra …

Persistent link: https://www.econbiz.de/10011059556

Volatility driven market in a generalized Lotka–Voltera formalism

Louzoun, Yoram; Solomon, Sorin - In: Physica A: Statistical Mechanics and its Applications 302 (2001) 1, pp. 220-233

The generalized Lotka–Voltera (GLV) formalism has been introduced in order to explain the power law distributions in the individual wealth (wi(t)) (Pareto law) and financial markets returns (fluctuations) (r) as a result of the auto-catalytic (multiplicative random) character of the individual...

Persistent link: https://www.econbiz.de/10010588757

Necessary conditions for the existence of quasi-polynomial invariants: the quasi-polynomial and Lotka–Volterra systems

Figueiredo, A.; Filho, T.M. Rocha; Brenig, L. - In: Physica A: Statistical Mechanics and its Applications 262 (1999) 1, pp. 158-180

-polynomial invariant of a homogeneous quadratic Lotka–Volterra dynamical system. We show how this quasi-polynomial invariant can be … decomposed in a simple manner. This decomposition permits to conclude that the existence of polynomial semi-invariants in Lotka–Volterra … construct the necessary conditions for existence of semi-invariants on Lotka–Volterra dynamical systems. Applications are given. …

Persistent link: https://www.econbiz.de/10010871993

Parameter estimation for differential equations using fractal-based methods and applications to economics

COLAPINTO, Cinzia; FINI, Matteo; KUNZE, Herb E.; … - Dipartimento di Economia, Management e Metodi … - 2008

Many problems from the area of economics and finance can be described using dynamical models. For them, in which time is the only independent variable and for which we work in a continuous framework, these models take the form of deterministic differential equations (DEs). We may study these...

Persistent link: https://www.econbiz.de/10005007458