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On the Reliability of Japanese Inflation Expectations Using Purchasing Power Parity

Author

Listed:
  • Koichiro Kamada

    (Bank of Japan)

  • Jouchi Nakajima

    (Bank of Japan)

Abstract

This paper shows how purchasing power parity (PPP) can be used to construct a measure for inflation expectations and discusses the properties of this measure from both a theoretical and an empirical perspective. Under the PPP hypothesis, inflation expectations in one country are equal to inflation expectations in another country plus the expected depreciation rate of the nominal exchange rate. Exploiting this formula, we calculate Japanese inflation expectations from the break-even inflation rates (BEI) and FX forward spreads for five countries (United States, United Kingdom, Australia, Canada, and Sweden). The resulting PPP-based measure of inflation expectations follows a trend that largely coincides with long-run developments in the Japanese BEI. However, we find that both levels of and variations in the new measure differ across the reference countries, and that a recent gap between the new measure and the Japanese BEI is not negligible from a short-run perspective. Consequently, there remain several issues that need to be addressed to assess the usefulness of this new formula.

Suggested Citation

  • Koichiro Kamada & Jouchi Nakajima, 2013. "On the Reliability of Japanese Inflation Expectations Using Purchasing Power Parity," Bank of Japan Working Paper Series 13-E-13, Bank of Japan.
    • Handle: RePEc:boj:bojwps:13-e-13
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    References listed on IDEAS

    as
    1. Kenneth Rogoff, 1996. "The Purchasing Power Parity Puzzle," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 647-668, June.
    2. Baba, Naohiko & Packer, Frank, 2009. "From turmoil to crisis: Dislocations in the FX swap market before and after the failure of Lehman Brothers," Journal of International Money and Finance, Elsevier, vol. 28(8), pages 1350-1374, December.
    3. Black, Fischer, 1976. "The pricing of commodity contracts," Journal of Financial Economics, Elsevier, vol. 3(1-2), pages 167-179.
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    1. repec:upd:utppwp:060 is not listed on IDEAS
    2. Hiroshi Ugai, "undated". "Transmission Channels and Welfare Implications of Unconventional Monetary Easing Policy in Japan," Working Papers e102, Tokyo Center for Economic Research.
    3. Mr. Serkan Arslanalp & Mr. Dennis P Botman, 2015. "Portfolio Rebalancing in Japan: Constraints and Implications for Quantitative Easing," IMF Working Papers 2015/186, International Monetary Fund.
    4. Chiang, Shu-Hen & Lee, Chien-Chiang & Liao, Ying, 2021. "Exploring the sources of inflation dynamics: New evidence from China," Economic Analysis and Policy, Elsevier, vol. 70(C), pages 313-332.
    5. Petra Gerlach-Kristen & Richhild Moessner & Rina Rosenblatt-Wisch, 2018. "Computing Long-Term Market Inflation Expectations for Countries without Inflation Expectation Markets," Russian Journal of Money and Finance, Bank of Russia, vol. 77(3), pages 23-48, September.
    6. Christina Anderl & Guglielmo Maria Caporale, 2021. "Nonlinearities and asymmetric adjustment to PPP in an exchange rate model with inflation expectations," Journal of Economic Studies, Emerald Group Publishing Limited, vol. 49(6), pages 937-959, August.
    7. Rosa Ferrentino & Luca Vota, 2022. "An Analysis of the Effectiveness of Japanese Monetary Policy Through a Statistical Mathematical Approach: a Simultaneous Equations Model (SEM)," Journal of Statistical and Econometric Methods, SCIENPRESS Ltd, vol. 11(1), pages 1-2.

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