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Skjeltorp, Johannes A - In: Physica A: Statistical Mechanics and its Applications 283 (2000) 3, pp. 486-528

The main objective of this paper is to investigate the validity of the much-used assumptions that stock market returns follow a random walk and are normally distributed. For this purpose the concepts of chaos theory and fractals are applied. Two independent models are used to examine price...

Persistent link: https://www.econbiz.de/10011063911

The Emergence of Econophysics: A New Approach in Modern Financial Theory

Jovanovic, Franck; Schinckus, Christophe - In: History of Political Economy 45 (2013) 3, pp. 443-474

theory. This new player is econophysics. Econophysics is a very recent movement that is beginning to interest increasing … numbers of financial practitioners. To date, no history of econophysics has been produced. This article aims at filling this … gap. It analyzes the theoretical foundations of econophysics and their connections with the history of financial economics …

Persistent link: https://www.econbiz.de/10010693417

A Methods Note on the Gauss-Seidel Algorithm for Solving Econometric Models

Heien, Dale; Mathews, Jim; Womack, Abner W. - In: Agricultural Economics Research (1973) 3

which requires no derivatives, matrix inversion, eigenvalue computation, or any other sophisticated numerical methodology …

Persistent link: https://www.econbiz.de/10010919377

The Economy of Creative Imagination. Milestones [Economia imaginaţiei creative. Puncte de reper]

Dumitru, Moldovan - In: Revista OEconomica (2013) 01

The article “the economy of creative imagination” argues in favour of the assumption that the process of creating economic goods, as well as living conditions of an individual, is accomplished, first of all, in the person\\\\\\\'s brain, in the imagination, by mobilizing the cosmic energies...

Persistent link: https://www.econbiz.de/10010965550

Evolutionary Dynamics of Nationalism and Migration

Rocha, André Barreira da Silva - Department of Economics, Leicester University - 2012

I present a dynamic evolutionary game model to address the relation between nationalism against immigrants and assimilation of the latter into the host country culture. I assume a country composed of two different large polymorphic populations, one of native citizens and the other of immigrants....

Persistent link: https://www.econbiz.de/10010968921

Modeling the International-Trade Network: a gravity approach

Dueñas, Marco; Fagiolo, Giorgio - In: Journal of Economic Interaction and Coordination 8 (2013) 1, pp. 155-178

We investigate whether the gravity model (GM) can explain the statistical properties of the International Trade Network (ITN). We fit data on trade flows with a GM using alternative estimation techniques and we build GM-based predictions for the weighted topological properties of the ITN, which...

Persistent link: https://www.econbiz.de/10010999166

Occupational mobility networks of female and male higher education graduates

LUNGU, Eliza-Olivia; ZAMFIR, Ana-Maria; MOCANU, Cristina - In: Theoretical and Applied Economics XVIII(2013) (2013) 8(585), pp. 37-46

We employ a network based approach to explore occupational mobility of the Romanian university graduates in the first years after graduation. This representation of data permits us to use the novel statistical techniques developed in the framework of weighted directed networks in order to...

Persistent link: https://www.econbiz.de/10010857217

Inhomogeneous scaling behaviors in Malaysian foreign currency exchange rates

Muniandy, S.V.; Lim, S.C.; Murugan, R. - In: Physica A: Statistical Mechanics and its Applications 301 (2001) 1, pp. 407-428

In this paper, we investigate the fractal scaling behaviors of foreign currency exchange rates with respect to Malaysian currency, Ringgit Malaysia. These time series are examined piecewise before and after the currency control imposed in 1st September 1998 using the monofractal model based on...

Persistent link: https://www.econbiz.de/10010872842

Random matrix theory and the failure of macro-economic forecasts

Ormerod, Paul; Mounfield, Craig - In: Physica A: Statistical Mechanics and its Applications 280 (2000) 3, pp. 497-504

By scientific standards, the accuracy of short-term economic forecasts has been poor, and shows no sign of improving over time. We form a delay matrix of time-series data on the overall rate of growth of the economy, with lags spanning the period over which any regularity of behaviour is...

Persistent link: https://www.econbiz.de/10010872849

Untangling complex networks: Risk minimization in financial markets through accessible spin glass ground states

Lisewski, Andreas Martin; Lichtarge, Olivier - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 16, pp. 3250-3253

Recurrent international financial crises inflict significant damage to societies and stress the need for mechanisms or strategies to control risk and tamper market uncertainties. Unfortunately, the complex network of market interactions often confounds rational approaches to optimize financial...

Persistent link: https://www.econbiz.de/10010872861

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