School of Economics and Management, Guangxi Normal University, Guilin, China
As of the end of 2022, there were approximately 9. 3 million confirmed cases of COVID-19 in China. The epidemic has brought direct negative impacts to the Chinese economy from both the demand and supply sides. Given the enormous impact of COVID-19, it is important to explore the performance of the Chinese stock market under the background of the epidemic. As an indicator of the national economy, the stock market has always been of interest to scholars. However, there has been limited research from the perspective of behavior finance that focuses on the impact of the psychological fear caused by the COVID-19 pandemic. Using the Baidu daily search index between February 24, 2020 and November 17, 2022 as a proxy variable for measuring investor fear, the daily return of the Shanghai Composite Index is used to describe the performance of the stock market. The results show that investors' fear of the epidemic significantly affects the performance of the stock market in a negative way. The Baidu index, as an internet tool, can be widely used in behavioral finance to establish more accurate models.
COVID-19 epidemic; Baidu index; stock market performance
Heng Wenxin. Performance of the Chinese Stock Market against the Backdrop of the COVID-19 Pandemic—Based on Baidu Index. Academic Journal of Business & Management (2023) Vol. 5, Issue 10: 78-83. https://doi.org/10.25236/AJBM.2023.051012.
 Yu Qingjin, Zhang Bing. (2012). Investors' Limited Attention and Stock Returns--An Empirical Study on Baidu Index. Financial Research (08), 153-165.
 Chen Bingzheng. (2020). "Pandemic Disease" Should be Considered a Catastrophe Risk. China Insurance (03), 5.
 Li Zhengquan. (2003). The Short and Long Term Analysis of SARS Influence on National Economy. Economic Science (03), 25-31.
 Yang Zihui, Wang Shudai. (2021). Systemic Financial Risk Contagion of Global Stock Market under Public Health Emergency: Empirical Evidence from COVID19 Epidemic. Economic Research (08), 22-38.
 Zhang Youguo, Sun Bowen, Xie Rui. (2021). Study on Decomposition and Countermeasures of the Economic Impact of Covid-19. Statistical Research (08), 69-82.
 Tong Jiadong, Sheng Bin, Jiang Dianchun, et al. (2020). Global Economy amid the COVID-19 Outbreak and Challenges for China. International Economic Review (03), 9-29.
 Chen Lin, Qu Xiaohui. (2020). Market Response to Contagious Public Health Events--A Research Based on COVID-19’s Impact on Chinese Stock Market. Finance Forum (07), 25-65.
 Yuan Mengyi, Hu Di. (2021). Study of Risk Spillover Effect of Global Stock Market against Background of COVID-19 Impact. Finance Forum (09), 36-48.
 Feng Zhenhua, Tang Mingkun. (2021). Steady State Equilibrium of Stock Investment Behavior in Information Shocks: Theoretical Analysis based on Behavioral Finance and MCMC Simulation Verification. Financial Economic Research (05), 148-160.
 Liu Weiqi, Liu Xinxin. (2014). Individual/institutional investor sentiment and stock returns: Shanghai A-share market. Management Sciences in China 17(03), 71-87.
 Liu Y-J, Zhang Z, Zhao L. (2015). Speculation Spillovers. Management Science 61(03), 649-64.
 S Decker, H Schmitz. (2016). Health Shocks and Risk Aversion. Health Economics 50, 156-170.
 E Vasileiou. (2021). Explaining stock markets' performance during the COVID‐19 crisis: Could Google searches be a significant behavioral indicator? Intelligent Systems in Accounting, Finance and Management 28(03), 173-181.
 Z Da, J Engelberg, P Gao. (2015). The Sum of All FEARS Investor Sentiment and Asset Prices. Review of Financial Studies 28(01), 1-32.
 Xu Hong, Pu Hongxia. (2021). The Impact of COVID-19 on China’s Stock Market--Based on Event Study. Finance Forum (07), 70-80.