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Have cryptocurrencies become an inflation hedge after the reopening of the U.S. economy?

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  • Sakurai, Yuji
  • Kurosaki, Tetsuo

Abstract

In this paper, we study how the comovement between cryptocurrencies and the U.S. inflation expectation rates has changed during the post-reopening of the U.S. economy after the Covid-19 crisis. To do so, we develop a new concept of “exceedance co-kurtosis” which allows us to quantify asymmetry in strong comovement between each cryptocurrency and the inflation expectation rate. The key findings are as follows. First, we show the change in the co-kurtosis asymmetry for major cryptocurrencies: the downside co-kurtosis was higher than the upside co-kurtosis but it decreased after the reopening of the economy. Although the unconditional correlations between cryptocurrencies and the inflation expectation rates remain very low, our results indicate that the major cryptocurrencies become a slightly better inflation hedge after the reopening. Second and more interestingly, the results do not depend on whether a cryptocurrency has a cap on maximum supply or not. Therefore, treating the major cryptocurrencies as digital commodities could be misleading from the viewpoint of portfolio optimization.

Suggested Citation

  • Sakurai, Yuji & Kurosaki, Tetsuo, 2023. "Have cryptocurrencies become an inflation hedge after the reopening of the U.S. economy?," Research in International Business and Finance, Elsevier, vol. 65(C).
    • Handle: RePEc:eee:riibaf:v:65:y:2023:i:c:s0275531923000417
    DOI: 10.1016/j.ribaf.2023.101915
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    2. Palwishah, Rana & Kashif, Muhammad & Rehman, Mobeen Ur & Al-Faryan, Mamdouh Abdulaziz Saleh, 2024. "Asymmetric liquidity risk and currency returns before and during COVID-19 pandemic," International Review of Financial Analysis, Elsevier, vol. 91(C).
    3. Gaies, Brahim & Chaâbane, Najeh & Arfaoui, Nadia & Sahut, Jean-Michel, 2024. "On the resilience of cryptocurrencies: A quantile-frequency analysis of bitcoin and ethereum reactions in times of inflation and financial instability," Research in International Business and Finance, Elsevier, vol. 70(PA).
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    5. Wang, Guizhou & Hausken, Kjell, 2024. "Hard money and fiat money in an inflationary world," Research in International Business and Finance, Elsevier, vol. 67(PB).

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    More about this item

    Keywords

    Bitcoin; Ethereum; Litecoin; Portfolio optimization; Covid-19 crisis;
    All these keywords.

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions

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