Machine learning shows that the Covid-19 pandemic is impacting U.S. public companies unequally by changing risk structures

• Likun Cao,

  Roles Conceptualization, Data curation, Methodology, Validation, Visualization, Writing – review & editing

  Affiliation Division of the Social Science, The University of Chicago, Chicago, IL, United States of America

  https://orcid.org/0000-0001-5234-3855

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• Jie Ren

  Roles Methodology, Resources, Validation, Writing – original draft

  * E-mail: renjie@ustb.edu.cn

  Affiliation School of Economics and Management, University of Science and Technology Beijing, Beijing, China

  https://orcid.org/0000-0001-9398-8764

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