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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
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
which requires no derivatives, matrix inversion, eigenvalue computation, or any other sophisticated numerical methodology …
Persistent link: https://www.econbiz.de/10010919377
Impulsivity and inconsistency in intertemporal choice have been attracting attention in econophysics and neuroeconomics … choice. Recent studies using Tsallis’ statistics-based econophysics have found a discount function (i.e. q …
Persistent link: https://www.econbiz.de/10009448386
We consider the Bovespa economic index (Ibovespa) from January 1994 to the present. Starting directly from this high resolution data we study the statistical properties of the time evolution of the Ibovespa. In order to obtain price dynamics information we find the probability density function...
Persistent link: https://www.econbiz.de/10005706746
Persistent link: https://www.econbiz.de/10005759601
The cross-correlation matrix between equities comprises multiple interactions between traders with varying strategies and time horizons. In this paper, we use the Maximum Overlap Discrete Wavelet Transform to calculate correlation matrices over different time–scales and then explore the...
Persistent link: https://www.econbiz.de/10008512512
Persistent link: https://www.econbiz.de/10008486738
We analyse the dependence of stock return cross-correlations on the data sampling frequency, known as the Epps effect: for high-resolution data the cross-correlations are significantly smaller than their asymptotic value as observed for daily data. The former description implies that a changing...
Persistent link: https://www.econbiz.de/10008466739
work in the field of econophysics that draws parallels between income, wealth and energy distributions. Examples of …
Persistent link: https://www.econbiz.de/10005134958