How well are long-run commodity price series characterized by trend components?

Paul Newbold, Stephan Pfaffenzeller and Anthony Rayner
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Paul Newbold: University of Nottingham, Nottingham, UK, Postal: University of Nottingham, Nottingham, UK
Anthony Rayner: University of Nottingham, Nottingham, UK, Postal: University of Nottingham, Nottingham, UK

Journal of International Development, 2005, vol. 17, issue 4, 479-494

Abstract: Various studies have investigated trends in commodity prices in the context of the Prebisch Singer Hypothesis. This paper applies new evidence on significance tests for trends in differenced and correlated stationary processes, to individual price series.

It is also investigated how well trends are suited for price forecasts and what these findings imply for developing countries. Few commodity price series are well characterized by a trend and trends are useful for forecasting in even fewer cases. Commodity specialization is still problematic for LDCs but the main issue is a lack of predictability rather than a secular decline. Copyright © 2005 John Wiley & Sons, Ltd.

Date: 2005
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Citations: View citations in EconPapers (15)

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jintdv:v:17:y:2005:i:4:p:479-494

DOI: 10.1002/jid.1139

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