投资者关注:会影响尼日利亚股市活动吗?

O. Osabuohien-Irabor
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引用次数: 2

摘要

目的研究通过Google搜索查询量衡量的投资者在线信息需求和维基百科页面浏览量的变化是否可以解释和预测尼日利亚证券交易所上市公司的股票收益、交易量和波动动态。设计/方法/方法采用多元回归模型作为研究方法,多元回归模型包含单变量和多变量回归框架。作为预分析的一部分,我们检验了多重共线性,并应用Wu/Hausman规格检验来检测回归模型中是否存在内生性。我们提供了新颖而有力的证据,证明谷歌搜索既不能解释同时也不能预测股票回报、交易量和波动动态。同样,结果也表明,交易量和波动性动态与与股票活动相关的维基百科页面浏览量的变化没有关系。原创性/价值本研究在非洲股票市场作为实证证据的背景下,开辟了“投资者注意力”实证文献的新线索。在之前的研究中,无论是谷歌搜索查询还是维基百科页面浏览量,都没有证据表明投资者的注意力与非洲股市,特别是尼日利亚股市有关。本研究试图通过研究这些关系来弥合这些知识差距。
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Investors’ attention: does it impact the Nigerian stock market activities?
PurposeThe author investigates whether investors’ online information demand measured by Google search query and the changes in the numbers of Wikipedia page view can explain and predict stock return, trading volume and volatility dynamics of companies listed on the Nigerian Stock Exchange.Design/methodology/approachThe multiple regression model which encompasses both the univariate and multivariate regression framework was employed as the research methodology. As part of our pre-analysis, we test for multicollinearity and applied the Wu/Hausman specification test to detect whether endogeneity exist in the regression model.FindingsWe provide novel and robust evidence that Google searches neither explain the contemporaneous nor predict stock return, trading volume and volatility dynamics. Similarly, results also indicate that trading volume and volatility dynamics have no relationship with changes in the numbers of Wikipedia pages view related to stock activities.Originality/valueThis study opens new strand of empirical literature of “investors' attention” in the context of African stock markets as empirical evidence. No evidence from previous studies on investors' attention exist, whether in Google search query or Wikipedia page view, with respect to African stock markets, particularly the Nigerian stock market. This study seeks to bridge these knowledge gaps by examining these relations.
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来源期刊
CiteScore
2.40
自引率
0.00%
发文量
10
审稿时长
10 weeks
期刊最新文献
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