Market efficiency of cryptocurrency: evidence from the Bitcoin market

Abstract This study examines whether the Bitcoin market satisfies the (weak-form) efficient market hypothesis using a quantum harmonic oscillator, which provides the state-specific probability density functions that capture the superimposed Gaussian and non-Gaussian states of the log return distribu...

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Main Authors: Eojin Yi, Biao Yang, Minhyuk Jeong, Sungbin Sohn, Kwangwon Ahn
Format: Article
Language:English
Published: Nature Portfolio 2023-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-31618-4
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author Eojin Yi
Biao Yang
Minhyuk Jeong
Sungbin Sohn
Kwangwon Ahn
author_facet Eojin Yi
Biao Yang
Minhyuk Jeong
Sungbin Sohn
Kwangwon Ahn
author_sort Eojin Yi
collection DOAJ
description Abstract This study examines whether the Bitcoin market satisfies the (weak-form) efficient market hypothesis using a quantum harmonic oscillator, which provides the state-specific probability density functions that capture the superimposed Gaussian and non-Gaussian states of the log return distribution. Contrasting the mixed evidence from a variance ratio test, the high probability allocated to the ground state suggests a near-efficient Bitcoin market. Findings imply that as Bitcoin evolves into an efficient market, speculators might encounter difficulty in exploiting profitable trading strategies. Furthermore, when policymakers initiate tight regulations to control the market, they should closely monitor market efficiency as an index of price distortion.
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spelling doaj.art-f949f6ce9e08486c94f2683ae9784c182023-03-26T11:10:05ZengNature PortfolioScientific Reports2045-23222023-03-0113111110.1038/s41598-023-31618-4Market efficiency of cryptocurrency: evidence from the Bitcoin marketEojin Yi0Biao Yang1Minhyuk Jeong2Sungbin Sohn3Kwangwon Ahn4Seoul Business School, aSSIST UniversityAntai College of Economics and Management, Shanghai Jiao Tong UniversityDepartment of Industrial Engineering, Yonsei UniversityDepartment of Economics, Sogang UniversityDepartment of Industrial Engineering, Yonsei UniversityAbstract This study examines whether the Bitcoin market satisfies the (weak-form) efficient market hypothesis using a quantum harmonic oscillator, which provides the state-specific probability density functions that capture the superimposed Gaussian and non-Gaussian states of the log return distribution. Contrasting the mixed evidence from a variance ratio test, the high probability allocated to the ground state suggests a near-efficient Bitcoin market. Findings imply that as Bitcoin evolves into an efficient market, speculators might encounter difficulty in exploiting profitable trading strategies. Furthermore, when policymakers initiate tight regulations to control the market, they should closely monitor market efficiency as an index of price distortion.https://doi.org/10.1038/s41598-023-31618-4
spellingShingle Eojin Yi
Biao Yang
Minhyuk Jeong
Sungbin Sohn
Kwangwon Ahn
Market efficiency of cryptocurrency: evidence from the Bitcoin market
Scientific Reports
title Market efficiency of cryptocurrency: evidence from the Bitcoin market
title_full Market efficiency of cryptocurrency: evidence from the Bitcoin market
title_fullStr Market efficiency of cryptocurrency: evidence from the Bitcoin market
title_full_unstemmed Market efficiency of cryptocurrency: evidence from the Bitcoin market
title_short Market efficiency of cryptocurrency: evidence from the Bitcoin market
title_sort market efficiency of cryptocurrency evidence from the bitcoin market
url https://doi.org/10.1038/s41598-023-31618-4
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