https://doi.org/10.1140/epjb/e20020155
Are EUR and GBP different words for the same currency?
1
Pennsylvania State University, University Park, PA 16802, USA
2
GRASP
and SUPRAS, B5, Sart Tilman, 4000 Liège, Belgium
Corresponding author: a kristy@essc.psu.edu
Received:
31
December
2001
Published online: 15 May 2002
The British Pound (GBP) is not part of the Euro (EUR) monetary system. In order to find out arguments on whether GBP should join the EUR or not correlations are calculated between GBP exchange rates with respect to various currencies: USD, JPY, CHF, DKK, the currencies forming EUR and a reconstructed EUR for the time interval from 1993 till June 30, 2000. The distribution of fluctuations of the exchange rates is Gaussian for the central part of the distribution, but has fat tails for the large size fluctuations. Within the Detrended Fluctuation Analysis (DFA) statistical method the power law behavior describing the root-mean-square deviation from a linear trend of the exchange rate fluctuations is obtained as a function of time for the time interval of interest. The time-dependent exponent evolution of the exchange rate fluctuations is given. Statistical considerations imply that the GBP is already behaving as a true EUR.
PACS: 05.45.Tp – Time series analysis / 05.45.Gg – Control of chaos, applications of chaos / 74.40.+k – Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.) / 95.10.Fh – Chaotic dynamics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
