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Interconnectedness between healthcare tokens and healthcare stocks: Evidence from a quantile VAR approach

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  • Yousaf, Imran
  • Pham, Linh
  • Goodell, John W.

Abstract

We investigate the interdependence between healthcare stocks and healthcare tokens, an emerging asset class associated with the integration of blockchain technology in the healthcare sector. Employing the quantile connectedness approach on the daily returns of the largest healthcare stocks and tokens, our results show that healthcare stocks and tokens are largely unrelated at the median quantile. In contrast, there is an increase in the connectedness between these markets at the extreme quantiles. We also find evidence of time-varying spillovers in the markets across the quantiles. Specifically, there is an increase in the sensitivity in the spillover patterns between healthcare stocks and tokens during extreme market conditions such as the first year of the COVID-19 pandemic. Finally, we document the asymmetric, time-varying tail dependence between healthcare stocks and healthcare tokens.

Suggested Citation

  • Yousaf, Imran & Pham, Linh & Goodell, John W., 2023. "Interconnectedness between healthcare tokens and healthcare stocks: Evidence from a quantile VAR approach," International Review of Economics & Finance, Elsevier, vol. 86(C), pages 271-283.
    • Handle: RePEc:eee:reveco:v:86:y:2023:i:c:p:271-283
    DOI: 10.1016/j.iref.2023.03.013
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    More about this item

    Keywords

    Blockchain; Healthcare tokens; Healthcare stocks; Extreme spillovers;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology; Plastics
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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