Hong, Hui; Bian, Zhicun; Lee, Chien-chiang - In: Financial innovation : FIN 7 (2021), pp. 1-18
. This paper examines the relationship between COVID‑19 and the instability of both stock return predictability and price … results highlight a single break in return predictability and price volatility of both S&P 500 and DJIA. The timing of the … members before COVID‑19 crashed the market. Furthermore, return predictability and price volatility significantly increased …