“…Secondly, this paper reveals the important impact of unstructured text information on the market, which is helpful for us to fully and objectively understand the impact of risk disclosure text on the efficiency of market resource allocation. However, it is not enough to measure only novelty and risk content, which may be affected by many factors, and more factors can be taken into consideration in the future (Boroon et al, 2021 ; Changchit et al, 2021 ; Fu et al, 2021 ; Huang et al, 2021a , b ; Islam et al, 2021 ; Li et al, 2021a , b ; Vali et al, 2021 ; Wang et al, 2021 ; Zhang et al, 2021a , b ; Zhang, Ye et al, 2021). Third, different market participants’ perception levels of risk and investment decision-making ability may have an impact on the results.…”