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On the (in)feasibility of covered interest parity as a solution to the forward bias puzzle

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  • Sanders S., Chang

Abstract

This paper examines Pippenger's (2011) proposed solution to the forward bias puzzle, which is based on the covered interest parity (CIP) condition. It is argued that the CIP-based approach does not solve this well known and long-standing puzzle in international finance in a meaningful way. Moreover, it is shown that empirical results from such an approach follow mechanically from the identity-like nature of the theory of covered interest parity, which, aside from small deviations due to transaction costs, is assumed to hold in all periods (as if it were an identity). We show that rather than leading to new insights, the simple reconfiguration of CIP to solve for the time t+1 spot exchange rate leads to tautological expressions that, when estimated, might appear to successfully explain the forward bias, but in actuality are trivial. Results from simple simulation exercises further illustrate the inconclusiveness of the proposed solution method.

Suggested Citation

  • Sanders S., Chang, 2011. "On the (in)feasibility of covered interest parity as a solution to the forward bias puzzle," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(4), pages 611-616, October.
  • Handle: RePEc:eee:intfin:v:21:y:2011:i:4:p:611-616
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    References listed on IDEAS

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    1. Pippenger, John, 2011. "The solution to the forward-bias puzzle," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(2), pages 296-304, April.
    2. Pippenger, John, 2011. "A Complete Solution To The Forward-Bias Puzzle," University of California at Santa Barbara, Economics Working Paper Series qt5gq9z4j0, Department of Economics, UC Santa Barbara.
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    Cited by:

    1. John, Pippenger, 2011. "The solution to the forward-bias puzzle: Reply," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(4), pages 629-636, October.
    2. Pippenger, John, 2013. "The Failure Of Uncovered Interest Parity, Forward Bias And Related Puzzles," University of California at Santa Barbara, Economics Working Paper Series qt50n5p8bv, Department of Economics, UC Santa Barbara.
    3. Grossmann, Axel & Lee, Allissa A. & Simpson, Marc W., 2014. "Forward premium anomaly of the British pound and the euro," International Review of Financial Analysis, Elsevier, vol. 34(C), pages 140-156.
    4. Li, Jing & Miller, Norman C., 2015. "Foreign exchange market inefficiency and exchange rate anomalies," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 34(C), pages 311-320.
    5. King, Alan, 2011. "Pippenger's CIP-based solution to the forward-bias puzzle: A rejoinder," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(5), pages 867-873.
    6. Kumar, Satish & Trück, Stefan, 2014. "Unbiasedness and risk premiums in the Indian currency futures market," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 29(C), pages 13-32.

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