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Price Efficiency of Cryptocurrencies

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  • Jonathan Lee Miller

    (EGADE Business School, Tecnológico de Monterrey, Monterrey 64849, Nuevo Leon, Mexico)

Abstract

We test price efficiency, which shows the fairness of trading for retail investors using the runs tests and variance ratio tests. We reject the hypothesis that Bitcoin prices are price efficient on most markets, but efficient on the Bitstamp BTC/USD. Coinbase departs from efficiency, indicating that fraud, later found by regulators, has significantly harmed retail investors. We also document barriers to trading of Bitcoin, which result in difficulties in arbitrage despite global price differences. My results predict the hack of the Bitfinex exchange, which caused it to close and harmed many people.

Suggested Citation

  • Jonathan Lee Miller, 2026. "Price Efficiency of Cryptocurrencies," JRFM, MDPI, vol. 19(2), pages 1-15, February.
    • Handle: RePEc:gam:jjrfmx:v:19:y:2026:i:2:p:143-:d:1864071
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