scholarly journals Econophysics and the Entropic Foundations of Economics

Entropy ◽  
2021 ◽  
Vol 23 (10) ◽  
pp. 1286
Author(s):  
J. Barkley Rosser
Keyword(s):  
Business Cycles ◽  
Financial Markets ◽  
Regional Economics ◽  
Wealth Distribution ◽  
Growth Theory ◽  
General Equilibrium Theory ◽  
Income Distributions ◽  
Income And Wealth Distribution ◽  
Power Law Distributions ◽  
Thermodynamic Processes

This paper examines relations between econophysics and the law of entropy as foundations of economic phenomena. Ontological entropy, where actual thermodynamic processes are involved in the flow of energy from the Sun through the biosphere and economy, is distinguished from metaphorical entropy, where similar mathematics used for modeling entropy is employed to model economic phenomena. Areas considered include general equilibrium theory, growth theory, business cycles, ecological economics, urban–regional economics, income and wealth distribution, and financial market dynamics. The power-law distributions studied by econophysicists can reflect anti-entropic forces is emphasized to show how entropic and anti-entropic forces can interact to drive economic dynamics, such as in the interaction between business cycles, financial markets, and income distributions.

scholarly journals Fashion and Business Cycles with Snobs and Bandwagoners in a Multi-Sector Growth Model

2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Wei-Bin Zhang
Keyword(s):  
Business Cycles ◽  
Growth Model ◽  
Wealth Distribution ◽  
Growth Theory ◽  
Preference Change ◽  
Dynamic Growth ◽  
Income And Wealth Distribution ◽  
Independent Parameters ◽  
Neoclassical Growth Theory ◽  
Neoclassical Growth

<p>This paper generalizes the dynamic growth model with interactions between fashion, economic growth and income and wealth distribution recently built by Zhang (2016). The modelling of fashion and preference change is inspirited by the economic model of fashion recently published by Giovinazzo and Naimzada (2015). This study introduces fashion into neoclassical growth theory. The original model is based on some ideas in the literature of economics of fashion. This study generalizes Zhang’s model by making all the time-independent parameters as time-dependent parameters. We simulate the motion of the economic system. We carry out comparative dynamic analysis with regard to periodic perturbations in some parameters. We show how exogenous period changes in these parameters lead to business cycles. </p>

scholarly journals Income and Wealth Distribution in Macroeconomics: A Continuous-Time Approach

2021 ◽  
Author(s):  
Yves Achdou ◽  
Jiequn Han ◽  
Jean-Michel Lasry ◽  
Pierre-Louis Lions ◽  
Benjamin Moll
Keyword(s):  
Continuous Time ◽  
Wealth Distribution ◽  
Closed Form Solution ◽  
Form Solution ◽  
Heterogeneous Agent ◽  
Saving Behavior ◽  
Income And Wealth Distribution ◽  
Heterogeneous Agent Models ◽  
Special Case

Abstract We recast the Aiyagari-Bewley-Huggett model of income and wealth distribution in continuous time. This workhorse model – as well as heterogeneous agent models more generally – then boils down to a system of partial differential equations, a fact we take advantage of to make two types of contributions. First, a number of new theoretical results: (i) an analytic characterization of the consumption and saving behavior of the poor, particularly their marginal propensities to consume; (ii) a closed-form solution for the wealth distribution in a special case with two income types; (iii) a proof that there is a unique stationary equilibrium if the intertemporal elasticity of substitution is weakly greater than one. Second, we develop a simple, efficient and portable algorithm for numerically solving for equilibria in a wide class of heterogeneous agent models, including – but not limited to – the Aiyagari-Bewley-Huggett model.

scholarly journals Forecasts, ethics and financial behaviour: Another reading of economic crises

2011 ◽  
Vol 1 (2) ◽  
pp. 7-13
Author(s):  
Miia Parnaudeau ◽  
Elisabeth Paulet
Keyword(s):  
Business Cycles ◽  
Financial Markets ◽  
Final Section ◽  
Subprime Crisis ◽  
Real Economy ◽  
Ethical Practices ◽  
Economic Agents ◽  
Financial Behaviour ◽  
The Uk ◽  
European Economies

The forecasts of economic agents are not without influence on financial markets‟ fluctuations. The recent subprime crisis has shown that incorrect use of information available on the markets added to the creation of complex financial instruments can have major consequences, not only in financial terms, but also on the real economy. Based on a study of three European countries, France, Germany and the UK, the goal of this paper is to assess how more ethical practices among economic agents can reduce the volatility of financial markets and stabilise the business cycles. This should lead to greater stability for European economies. After discussing the various possible forms that the forecasts of economic agents can take, we will study their correlation with business cycles. The final section will be dedicated to formulating various hypotheses and scenarios for explaining speculative cycles and how to control them with more ethical practices.

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