Mandelbrot,1963 and Fama,1965 pointed out that the exchange rate data series are, generally, characterized by
conditional heteroscedasticity, asymmetry and clustered volatility, fact that implies the need to cancel the normal
distribution hypothesis, a different approach being needed to modelling those data series
Mandelbrot,1963 and Fama,1965 pointed out that the exchange rate data series are, generally, characterized byconditional heteroscedasticity, asymmetry and clustered volatility, fact that implies the need to cancel the normaldistribution hypothesis, a different approach being needed to modelling those data series
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