Chung, Ching-fan; Hung, Mao-Wei; Liu, Yu-Hong - In: Research in finance : Vol. 20, (pp. 139-158). 2003
This study employs a new time series representation of persistence in conditional mean and variance to test for the existence of the long memory property in the currency futures market. Empirical results indicate that there exists a fractional exponent in the differencing process for foreign...