Results 51 to 60 of about 701 (180)

The spectral boundary of block structured random matrices

open access: yesJournal of Physics: Complexity
Economic and ecological models can be extremely complex, with a large number of agents/species each featuring multiple interacting dynamical quantities. In an attempt to understand the generic stability properties of such systems, we define and study an ...
Nirbhay Patil   +2 more
doaj   +1 more source

Scale‐Dependent Inverse Temperature Features Associated With Crashes in the US and Japanese Stock Markets

open access: yesComplexity, Volume 2025, Issue 1, 2025.
Some complex systems (e.g., an ecosystem) in direct contact with an environment can be assigned the temperature of the environment. Other complex systems, such as human beings, can maintain a core temperature of 36.5°C in environments with different temperatures, at least for a short period of time.
Peter Tsung-Wen Yen   +2 more
wiley   +1 more source

Regional analysis of study abroad search indices in China based on visibility graph theory: temporal patterns and regional coordination

open access: yesFrontiers in Physics
IntroductionUnderstanding the temporal dynamics and regional variation of study-abroad search attention is important for interpreting educational mobility intentions in a highly digitized information environment.MethodsThis study applies visibility graph
Li Wang   +3 more
doaj   +1 more source

A Mathematical Model for the Dynamics of Income Distribution in the Presence of Production

open access: yesComplexity, Volume 2024, Issue 1, 2024.
In this paper, a mathematical model is formulated, suitable to explain the evolution of income distribution over a population in the presence of production. The model is conceived from the perspective of complexity. Indeed, the income distribution emerges as the result of a myriad of economic exchanges taking place between individuals. In fact, the aim
Maria Letizia Bertotti, Hiroki Sayama
wiley   +1 more source

Is Economics an Empirical Science? If not, can it become one?

open access: yesFrontiers in Applied Mathematics and Statistics, 2015
Today’s mainstream economics, embodied in Dynamic Stochastic General Equilibrium (DSGE) models, cannot be considered an empirical science in the modern sense of the term: it is not based on empirical data, is not descriptive of the real-world economy ...
Sergio Mario Focardi   +1 more
doaj   +1 more source

The Sequential Conformable Langevin‐Type Differential Equations and Their Applications to the RLC Electric Circuit Problems

open access: yesJournal of Applied Mathematics, Volume 2024, Issue 1, 2024.
In this paper, the sequential conformable Langevin‐type differential equation is studied. A representation of a solution consisting of the newly defined conformable bivariate Mittag‐Leffler function to its nonhomogeneous and linear version is obtained via the conformable Laplace transforms’ technique. Also, existence and uniqueness of a global solution
M. Aydin, N. I. Mahmudov, Waleed Adel
wiley   +1 more source

The Resolvent of Impulsive Singular Hahn–Sturm–Liouville Operators

open access: yesAnnales Mathematicae Silesianae
In this study, the resolvent of the impulsive singular Hahn–Sturm– Liouville operator is considered. An integral representation for the resolvent of this operator is obtained.
Allahverdiev Bilender P.   +2 more
doaj   +1 more source

Applying the Möbius Strip Model to Corporate Social Responsibility: Survey-Based Findings from Italian Social Enterprises [PDF]

open access: yesReports in Advances of Physical Sciences, 2017
In this work, we apply the electro-magnetism geometrical model of the Möbius Strip in the context of Corporate Social Responsibility (CSR) in order to test the relationship between CSR and organizational performance.
Francisco Lopez Arceiz   +3 more
doaj   +1 more source

Impact of the COVID-19 pandemic on the intermittent behavior of the global spot markets of staple food crops

open access: yesJournal of Management Science and Engineering
Intermittent or multifractal behavior has been reported in various markets, and the impact of the COVID-19 pandemic has been investigated. However, the impact of the COVID-19 pandemic on global spot markets for staple foods has not yet been studied.
Xing-Lu Gao   +2 more
doaj   +1 more source

Stochastic modelling for financial bubbles and policy

open access: yesCogent Economics & Finance, 2015
In this paper, we draw upon the close relationship between statistical physics and mathematical finance to develop a suite of models for financial bubbles and crashes.
John Fry
doaj   +1 more source

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