The Impact of Covid-19 on the US Stock Market: Evidence from Time Series Model
DOI:
https://doi.org/10.54691/bcpbm.v26i.2006Keywords:
COVID-19; US Stock Market; VAR Model; ARMA-GARCH Model; Time Series Analysis.Abstract
In this study, we conduct a time series analysis of the US stock market’s response to the COVID-19 pandemic. Using both US and global daily COVID-19 newly confirmed cases and stock market returns data represented by Nasdaq, S&P 500, and Dow Jones over the period 31 December 2019 to 30 December 2021, we examine a time-series impact of COVID-19 on the US stock market. We employ our input into a vector autoregression model (VAR) and ARMA-GARCH model to characterize the dynamic relationship between both domestic and global COVID-19 infections and the performance of the US stock market. The findings show that COVID-19 has an initial negative shock on the stock market with large volatility clustering within 60 days after the initial pandemic outbreak. After around 200 to 300 days, the number of new COVID-19 cases per day does not have a statistically significant impact on the US stock market.
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Pettersson, H., Manley, B, Hernandez, S. Tracking covid-19's global spread [EB/OL]. CNN [2022-05-14]. https://edition.cnn.com/interactive/2020/health/coronavirus-maps-and-cases/
International Monetary Fund. World Economic Outlook UpdateInc: Policy Support and Vaccines Expected to Lift Activity [EB/OL]. (2021-01) [2022-05-14]. https://www.imf.org/en/Publications/WEO/Issues/2021/01/26/2021-world-economic-outlook-update#:~:text=The%20global%20growth%20contraction%20for,the%20second%20half%20of%202020
Ganie I R, Wani T A, Yadav M P. Impact of COVID-19 Outbreak on the Stock Market: An Evidence from Select Economies [J]. Business Perspectives and Research, 2022: 22785337211073635.
Steven, P, Li Y, Imbert, F. Stock market live Monday: Dow drops 13%, Trump says recession possible, trading halted at open [EB/OL]. CNBC (2020-3-17) [2022-05-14]. https://www.cnbc.com/2020/03/16/stock-market-today-live.html
Ashraf B N. Stock markets’ reaction to COVID-19: Cases or fatalities? [J]. Research in International Business and Finance, 2020, 54: 101249.
Youssef M, Mokni K, Ajmi A N. Dynamic connectedness between stock markets in the presence of the COVID-19 pandemic: does economic policy uncertainty matter? [J]. Financial Innovation, 2021, 7 (1): 1-27.
Jackson A L, Curry B. 2020 Stock Market in Review: A Year That Defied Expectations [EB/OL]. Forbes (2020-12-04) [2022-05-14]. https://www.forbes.com/advisor/investing/stock-market-year-in-review-2020/
World Health Organization. WHO Coronavirus (COVID-19) Dashboard. [2022-05-12], from https://covid19.who.int/data
Pickup M, Kellstedt P M. Balance as a Pre-Estimation Test for Time Series Analysis [J]. Political Analysis, 2022: 1-10.
Song S, Bickel P J. Large vector auto regressions [J]. arXiv preprint arXiv: 1106.3915, 2011.
Huang L. Auto regressive moving average (ARMA) modeling method for Gyro random noise using a robust Kalman filter [J]. Sensors, 2015, 15 (10): 25277-25286.
Liew V K S. Which lag length selection criteria should we employ? [J]. Economics bulletin, 2004, 3 (33): 1-9.
Vasileiou E. Explaining stock markets' performance during the COVID‐19 crisis: Could Google searches be a significant behavioral indicator? [J]. Intelligent Systems in Accounting, Finance and Management, 2021, 28 (3): 173-181.
Decker S, Schmitz H. Health shocks and risk aversion [J]. Journal of health economics, 2016, 50: 156-170.
Engelhardt N, Krause M, Neukirchen D, et al. Trust and stock market volatility during the COVID-19 crisis [J]. Finance Research Letters, 2021, 38: 101873.
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