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Are markets sentiment driving the price bubbles in the virtual?

Author

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  • Ben Osman, Myriam
  • Galariotis, Emilios
  • Guesmi, Khaled
  • Hamdi, Haykel
  • Naoui, Kamel

Abstract

This paper investigates the existence of speculative bubbles in four crypto-market components (Bitcoin, Ethereum, CRIX index, DeFi pulse index) while date-stamping them, before using a wavelet coherence approach to look after the co-movement of each of those four digital tokens with three sentiment indices reflecting three different markets (Stock, gold, and crypto markets). Thereafter, we study the sentiment-price return connection and its concordance with periods of existing bubbles. Our results show the existence of multiple bubble regimes in the virtual market and more specifically, a huge bubble occurring during the crypto-market bull phase for Bitcoin, Ethereum, and CRIX. Moreover, we find that the bubbles that occurred during the COVID-19 pandemic concord with periods of high sentiment co-movement with the three markets. Hence, some of those bubble periods are in phases with periods of high co-movement with sentiments toward different markets. In addition, the fear and greed toward the crypto-market seem to be the leading sentiment index that highly influences the crypto-market components and their bubble appearances.

Suggested Citation

  • Ben Osman, Myriam & Galariotis, Emilios & Guesmi, Khaled & Hamdi, Haykel & Naoui, Kamel, 2024. "Are markets sentiment driving the price bubbles in the virtual?," International Review of Economics & Finance, Elsevier, vol. 89(PB), pages 272-285.
    • Handle: RePEc:eee:reveco:v:89:y:2024:i:pb:p:272-285
    DOI: 10.1016/j.iref.2023.10.041
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    Cited by:

    1. Xiaorui Zuo & Yao-Tsung Chen & Wolfgang Karl Hardle, 2024. "Emoji Driven Crypto Assets Market Reactions," Papers 2402.10481, arXiv.org.

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