2022
DOI: 10.1371/journal.pone.0269582
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Machine learning shows that the Covid-19 pandemic is impacting U.S. public companies unequally by changing risk structures

Abstract: Covid-19 has impacted the U.S. economy and business organizations in multiple ways, yet its influence on company fundamentals and risk structures have not been fully elucidated. In this paper, we apply LDA, a mainstream topic model, to analyze the risk factor section from SEC filings (10-K and 10-Q), and describe risk structure change over the past two years. The results show that Covid-19 has transformed the risk structures U.S. companies face in the short run, exerting excessive stress on international inter… Show more

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