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Commodity Currencies and the Real Exchange Rate

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  • Paul Cashin
  • Luis Felipe Céspedes
  • Ratna Sahay

Abstract

This paper examines whether the real exchange rates of commodity-exporting countries and the real prices of their commodity exports move together over time. Using IMF data on the world prices of 44 commodities and national commodity export shares, we construct new monthly indices of national commodity export prices for 58 commodity-exporting countries over 1980-2002. Evidence of a longrun relationship between national real exchange rate and real commodity prices is found for about onethird of the commodity-exporting countries. The long-run real exchange rate of these ‘commodity currencies’ is not constant (as would be implied by purchasing power parity-based models) but is time-varying, being dependent on movements in the real price of commodity exports.

Suggested Citation

  • Paul Cashin & Luis Felipe Céspedes & Ratna Sahay, 2003. "Commodity Currencies and the Real Exchange Rate," Working Papers Central Bank of Chile 236, Central Bank of Chile.
    • Handle: RePEc:chb:bcchwp:236
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    References listed on IDEAS

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