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The Commodity Currency Puzzle

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  • Hilde C Bjørnland
  • Håvard Hungnes

Abstract

This paper addresses the Purchasing Power Parity (PPP) puzzle for a commodity currency. In particular, we analyze the real exchange rate behavior in Norway, which has a primary commodity (oil) that constitutes the majority of its exports. A substantial part of the literature on commodity currencies has found that, despite controlling for the effect of commodity prices, PPP does not hold in the long run. We show that once we also control for the effect of the interest rate differential in the real exchange rate relationship, the deviations from PPP are fully accounted for. Furthermore, with the interest rate differential included in the long run real exchange rate relationship, the real oil price plays only a minor role. Adjustment to equilibrium (half-lives) is also substantially reduced, taking no more than one year on average. Hence, contrary to earlier findings on commodity currencies, this paper has effectively dealt with the PPP puzzle.

Suggested Citation

  • Hilde C Bjørnland & Håvard Hungnes, 2008. "The Commodity Currency Puzzle," The IUP Journal of Monetary Economics, IUP Publications, vol. 0(2), pages 7-30, May.
  • Handle: RePEc:icf:icfjmo:v:06:y:2008:i:2:p:7-30
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    References listed on IDEAS

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    Cited by:

    1. Tayfur Bayat & Saban Nazlioglu & Selim Kayhan, 2015. "Exchange Rate and Oil Price Interactions in Transition Economies: Czech Republic, Hungary and Poland," Panoeconomicus, Savez ekonomista Vojvodine, Novi Sad, Serbia, vol. 62(3), pages 267-285, June.
    2. Geir E. Alstad, 2010. "The long-run exchange rate for NOK: a BEER approach," Working Paper 2010/19, Norges Bank.
    3. Fernanda Fuentes & Rodrigo Herrera & Adam Clements, 2016. "Modelling Extreme Risks in Commodities and Commodity Currencies," NCER Working Paper Series 115, National Centre for Econometric Research.
    4. repec:kap:iaecre:v:18:y:2012:i:3:p:299-314 is not listed on IDEAS
    5. Stephanos Papadamou & Thomas Markopoulos, 2012. "The Monetary Approach to the Exchange Rate Determination for a “Petrocurrency”: The Case of Norwegian Krone," International Advances in Economic Research, Springer;International Atlantic Economic Society, vol. 18(3), pages 299-314, August.
    6. Lambelet, Jean-Christian & Mihailov, Alexander, 2005. "The Triple-Parity Law," Economics Discussion Papers 8896, University of Essex, Department of Economics.
    7. Chen, Hongtao & Liu, Li & Wang, Yudong & Zhu, Yingming, 2016. "Oil price shocks and U.S. dollar exchange rates," Energy, Elsevier, vol. 112(C), pages 1036-1048.

    More about this item

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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