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Abstract
This article applies the Hinich portmanteau test to the daily return of the international Arabica
Colombian coffee price the period 06/29/1990 to 07/01/2010. By splitting the data in windows
and setting the null hypothesis on the time series, H : a stationary pure noise process with zero 0
tricorrelations and bicorrelations for each window. The main result of this paper is that there is
significant evidence in 10 and 11 windows, respectively. This shows that there are statistical
structures with nonlinear dependence. Thus it is difficult for economic agents to cope with
forecast performance decisions in this market.