Physics – Physics and Society
Scientific paper
2005-08-23
Physics
Physics and Society
5 pages, 5 figures :Proceedings of The Third Nikkei Econophysics Symposium
Scientific paper
We introduce an autoregressive-type model with self-modulation effects for a foreign exchange rate by separating the foreign exchange rate into a moving average rate and an uncorrelated noise. From this model we indicate that traders are mainly using strategies with weighted feedbacks of the past rates in the exchange market. These feedbacks are responsible for a power law distribution and characteristic autocorrelations of rate changes.
Mizuno Takayuki
Takayasu Hideki
Takayasu Misako
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