Commodity prices and the US money supply in the long run
by Samih Antoine Azar
International Journal of Trade and Global Markets (IJTGM), Vol. 5, No. 3/4, 2012

Abstract: Theoretically commodity prices are expected to overshoot the money supply in the short run but to vary with unit proportionality in the long run. This follows from the observation that consumer prices are sticky and that commodity prices, set in auction markets are fully flexible. There is empirical evidence in the literature that commodity indexes are indeed anchored in the long run to the money supply with unit proportionality. However there is a dearth of research on the long-run behaviour of individual commodities with respect to the money supply. This paper fills this gap in the literature. When 48 individual commodity series and six commodity indexes series are studied over the monthly period 1980/2011, there is fairly strong evidence for unit proportionality to money supply. Individual regressions and panel regressions are both supportive of unit proportionality. The preconception that commodity prices move haphazardly is hence rejected.

Online publication date: Wed, 31-Dec-2014

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