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Stock market reactions to the COVID-19 pandemic: The moderating role of corporate big data strategies based on Word2Vec

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  • Xue, Fujing
  • Li, Xiaoyu
  • Zhang, Ting
  • Hu, Nan

Abstract

By developing a machine learning-based measure of corporate big data strategies, this study empirically explores how stock markets respond to the COVID-19 pandemic and whether corporate big data strategies make firms immune to the pandemic effect. We find that except for information technology and health care sectors, firms in most sectors in China are negatively affected by the COVID-19 outbreak. Among these firms, an increase in the number of daily new confirmed cases in the city of a firm's headquarters is associated with a decrease in its stock prices, however, such a decline is attenuated for firms with a high emphasis on big data strategies. Our results are robust when we use COVID-19 cases at the whole country level.

Suggested Citation

  • Xue, Fujing & Li, Xiaoyu & Zhang, Ting & Hu, Nan, 2021. "Stock market reactions to the COVID-19 pandemic: The moderating role of corporate big data strategies based on Word2Vec," Pacific-Basin Finance Journal, Elsevier, vol. 68(C).
    • Handle: RePEc:eee:pacfin:v:68:y:2021:i:c:s0927538x21001153
    DOI: 10.1016/j.pacfin.2021.101608
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    2. Li, Yanshuang & Shi, Yujie & Shi, Yongdong & Xiong, Xiong & Yi, Shangkun, 2024. "Time-frequency extreme risk spillovers between COVID-19 news-based panic sentiment and stock market volatility in the multi-layer network: Evidence from the RCEP countries," International Review of Financial Analysis, Elsevier, vol. 94(C).
    3. Rahman, Md Lutfur & Al Mamun, Mohammed Abdullah, 2021. "How resilient are the Asia Pacific financial markets against a global pandemic?," Pacific-Basin Finance Journal, Elsevier, vol. 69(C).
    4. Li, Yanshuang & Shi, Yujie & Shi, Yongdong & Yi, Shangkun & Zhang, Weiping, 2023. "COVID-19 vaccinations and risk spillovers: Evidence from Asia-Pacific stock markets," Pacific-Basin Finance Journal, Elsevier, vol. 79(C).

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