ZHOU Geng, RUAN Dong-zhe
Journal of Central University of Finance & Economics.
2024, 0(11):
36-49.
Digital communication plays a crucial role in facilitating mutual communication and shared market insights, exerting a far-reaching influence on the capital market.This paper employs artificial intelligence and text vectorization techniques to analyze sentiment and information quality across nearly 3 million interactions on the Shenzhen Stock Exchange's Hudongyi platform from 2010 to 2019.The study reveals the complex interplay between investor sentiment negativity, digital communication, and market pricing efficiency. The findings are as follows: First, there is a significant negative correlation between the negativity of investor sentiment and market pricing efficiency.Second, high-quality digital interactions between investors and listed companies, on the one hand, directly enhance stock pricing efficiency, and on the other hand, effectively mitigate the negative impact of investor sentiment on the market.Third, while noise in digital communication does not directly affect market pricing efficiency, it may exacerbate the negative market impact of investor sentiment.The study suggests that enhancing the quality of communication information, improving information disclosure mechanisms, and integrating digital communication platforms are crucial for preventing the accumulation of negative sentiment and improving the efficiency of resource allocation in the capital market.