北京邮电大学学报（社会科学版）
北京郵電大學學報（社會科學版）
북경유전대학학보（사회과학판）
Journal of Beijing University of Posts and Telecommunications (Social Sciences Edition)
2015年
5期
12-22
,共11页
股票交易量%社交媒体%信息内容%形象提升类信息%非形象提升类信息
股票交易量%社交媒體%信息內容%形象提升類信息%非形象提升類信息
고표교역량%사교매체%신식내용%형상제승류신식%비형상제승류신식
stock trading volume%social media%information content%image enhancing information%non-image enhancing information
对142家标普500成分企业在Twitter上发布的信息进行语义分析, 将其分为企业形象提升类信息与非形象提升类信息, 实证分析了两类信息与企业股票交易量之间的相关关系, 并检验了两类信息之间的交互作用, 研究发现: 企业形象提升类信息有效地提高了投资者的感知价值, 降低了信息不对称程度, 与股票交易量之间呈显著的正相关关系; 非企业形象提升类信息多为中立信息, 过多地占用了投资者处理企业形象提升类信息的注意力资源, 不利于降低信息不对称程度, 显著地削弱了企业形象提升类信息与股票交易量之间的正相关关系, 并且与股票交易量之间呈显著的负相关关系.
對142傢標普500成分企業在Twitter上髮佈的信息進行語義分析, 將其分為企業形象提升類信息與非形象提升類信息, 實證分析瞭兩類信息與企業股票交易量之間的相關關繫, 併檢驗瞭兩類信息之間的交互作用, 研究髮現: 企業形象提升類信息有效地提高瞭投資者的感知價值, 降低瞭信息不對稱程度, 與股票交易量之間呈顯著的正相關關繫; 非企業形象提升類信息多為中立信息, 過多地佔用瞭投資者處理企業形象提升類信息的註意力資源, 不利于降低信息不對稱程度, 顯著地削弱瞭企業形象提升類信息與股票交易量之間的正相關關繫, 併且與股票交易量之間呈顯著的負相關關繫.
대142가표보500성분기업재Twitter상발포적신식진행어의분석, 장기분위기업형상제승류신식여비형상제승류신식, 실증분석료량류신식여기업고표교역량지간적상관관계, 병검험료량류신식지간적교호작용, 연구발현: 기업형상제승류신식유효지제고료투자자적감지개치, 강저료신식불대칭정도, 여고표교역량지간정현저적정상관관계; 비기업형상제승류신식다위중립신식, 과다지점용료투자자처리기업형상제승류신식적주의력자원, 불리우강저신식불대칭정도, 현저지삭약료기업형상제승류신식여고표교역량지간적정상관관계, 병차여고표교역량지간정현저적부상관관계.
Semantic analysis is conducted about the information released on Twitter from the 142 enterprises lis-ted in S&P 500 enterprises.The information is categorized as enterprises' image enhancing information and non-image enhancing information, and the relationship between these two types of information and stock trading vol-ume is empirically studied, and the interactive effects of the information are tested.It is found that, the image enhancing information can effectively improve the perceived value of investors and reduce the degree of informa-tion asymmetry, and has the significantly positive correlation with the stock trading volume.Meanwhile, most non-image enhancing information is neutral, which distracts investors from dealing with the image enhancing in-formation and intensifies the degree of information asymmetry; and have the negative correlation with the stock trading volume.The non-image enhancing information weakens the positive correlation between the image enhan-cing information and the stock trading volume.This study provides a new way to explore the business value of en-terprises' social media.
