Research On The Effect Of Corporate Relationship On Stock Returns In Internet News

All along,stock returns have been the focus of investors in the stock market,and they have also attracted the attention of companies and government agencies.In previous studies,scholars analyzed the factors affecting stock returns from various aspects.The listed companies are not isolated individuals.Often,each listed company has competition and cooperation relationship with other listed companies.What is the internal link between the stock returns of two competing or cooperative relationships? When the stock yield rises or falls,how does the other party change? It is the content of this paper.This article first reviews the literature,and theoretically analyzes the relationship between the company's competitive cooperation,Internet news mining,stock returns and the relationship between the three.After obtaining the text information in Sina Finance News,and based on the news text obtained,the name of the listed company in the news text is identified.Then,this article uses the Bi-LSTM network in deep learning method to classify the listed company's relations in the news into three categories: competitive relationship,cooperative relationship,and absence of competitive cooperation.Then the paper builds a competitive network and cooperation network among listed companies according to the results of the classification.This article also uses empirical meth ods to verify the impact of the company's competitive relationship and the company's partnership on the stock returns of the two companies.In this paper,we use the multiple linear regression model to regress the difference between the two companies' annu al stock returns in the competitive network or in the cooperative network.When studying the influence of corporate partnerships on the stock-return difference between two companies,it was found that the inter-firm partnership has a significant negative impact on the gap between stock returns of the two companies,indicating that there is a cooperative company in the stock market.Common advance and retreat trends.When investigating the impact of corporate competitive relationships on the gap in stock returns between two firms,it was found that competitive relationships among firms have a significant positive effect on the gap between stock returns of two firms,indicating that the competitive companies are quite the opposite,as one falls,another rises.In addition,through the study,this paper also finds that the difference of the moderate centrality of the cooperation network has a weaker regulatory effect on the corporate cooperation weight.