Trends and Cycles in Historical Gold and Silver Prices
Luis Gil-Alana,
Goodness Aye () and
Rangan Gupta
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Goodness Aye: Department of Economics, University of Pretoria
No 201507, Working Papers from University of Pretoria, Department of Economics
Abstract:
The study proposes an alternative modelling specification for the real prices of gold and silver that allows the long run trend and cyclical behaviour to be modelled simultaneously by incorporating two differencing parameter in a fractional integration framework. However, we also consider the separate cases of a standard I(d) process, with a pole or singularity at the zero frequency and a cyclical I(d) model that incorporates a single pole in the spectrum at a non-zero frequency. We use annual data spanning from 1833 to 2013for gold and 1792 to 2013 for silver. Based on the more flexible model that permits a pole at both zero (trend) and non-zero (cycle) frequencies, we find that in general the estimates associated to the long run or zero frequency appear to be above 1 in case of gold and below 1 for silver, while the order of integration associated with the cyclical frequency is slightly above 0 in the majority of the cases in the two series. Further, higher orders of integration are associated to the long run component compared with the cyclical one. The implications for these findings are highlighted.
Keywords: Gold and Silver Prices; Cycles; Persistence; Long memory (search for similar items in EconPapers)
JEL-codes: C22 Q02 (search for similar items in EconPapers)
Pages: 31 pages
Date: 2015-02
New Economics Papers: this item is included in nep-his
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Citations: View citations in EconPapers (15)
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Related works:
Working Paper: Trends and Cycles in Historical Gold and Silver Prices (2016) 
Journal Article: Trends and cycles in historical gold and silver prices (2015) 
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Persistent link: https://EconPapers.repec.org/RePEc:pre:wpaper:201507
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