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How information technologies shape investor sentiment: A web-based investor sentiment index

机译:信息技术如何塑造投资者情绪:基于网络的投资者情绪指数

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摘要

This paper proposes a new investor sentiment indicator that combines the use of principal component analysis with web searches. This proposal provides economic meaning to the underlying variables, a sound factor structure, and reduces the noise regarding to web searches, when compared to standard search-based sentiment indicators. In fact, our indicator not only confirms the relevance of sentiment for future assets performance and provides greater predictive capacities than standard formulations, but also generates new insights in terms of globalization of investor sentiment and the role that information flows and technology play on that process. Moreover, it challenges some general beliefs present in the literature of sentiment such as the prevalence of a local bias, the greater impact of sentiment in developed markets or the fact that institutional investors are not sensitive to sentiment. Finally, an investment strategy is implemented showing how a sentiment-based investment rule generates above-market returns. Copyright (C) 2019, Borsa Istanbul Anonim Sirketi. Production and hosting by Elsevier B.V.
机译:本文提出了一种新的投资者情绪指标,将主要成分分析与Web搜索相结合。该提议向潜在的变量,声系结构提供了经济意义,并与基于标准搜索的情绪指示器相比,对网站搜索的噪声降低。事实上,我们的指标不仅证实了对未来资产绩效的情绪的相关性,并提供了比标准制剂更大的预测能力,而且还在投资者情绪的全球化方面产生了新的见解以及信息流和技术在该过程中发挥信息的作用。此外,它挑战了一些普遍存在的情绪中存在的一般信念,如当地偏见的普遍存在,发达市场中情绪的更多影响或机构投资者对情绪不敏感的事实。最后,实施了投资策略,展示了基于情绪的投资规则如何产生上述市场回报。版权所有(c)2019,Borsa Istanbul Anonim Sirketi。 Elsevier B.V的生产和托管。

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