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Sentiment Analysis in Financial Decision-Making: Models, Behavioral Insights, and Practical Strategies
Abstract
This chapter highlights the importance of sentiment analysis in financial decision-making, focusing on how sentiment analysis techniques can extract and understand emotions expressed in financial texts such as news, annual reports, and social media posts. The chapter points out that traditional methods, such as lexical dictionaries, have become less effective in handling the linguistic complexity of financial texts. At the same time, modern models like Transformers have demonstrated high accuracy in extracting sentiments, even with limited data. It also discusses the applications of sentiment analysis in predicting companies' financial performance, as these tools can be used to analyze executive messages, and company reports to gauge future financial performance trends. Additionally, the chapter explores how sentiment indicators can be integrated with traditional financial metrics to design innovative investment strategies that outperform traditional benchmarks like the S&P 500. It also addresses the impact of sentiment analysis on household financial decision-making, as studies suggest that positive sentiment contributes to increased participation in stock markets. Despite these benefits, the chapter discusses the challenges facing sentiment analysis, such as the scarcity of labeled data and the difficulty of extracting full context from financial texts, proposing solutions like context-enhanced models to improve predictive performance. It also discusses the ongoing need to develop specialized dictionaries for financial texts, which remains a significant challenge in this field. In conclusion, the chapter provides a comprehensive overview of the role of sentiment analysis in financial decision-making, emphasizing that the continuous advancement in natural language processing and machine learning technologies will enhance the accuracy of these tools and expand their applications in investment and financial risk management.
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