风险披露的“红色”和“绿色”标志——识别正面和负面关键字与连续累积异常股票回报之间的关联

IF 2.4 Q2 BUSINESS, FINANCE
Deborah Yvonne Nagel, Stephan Fuhrmann, Thomas Günther
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引用次数: 1

摘要

目的探讨风险披露(rd)对股权投资者投资决策的支持作用。由于先前的研究批评了现有实证研究中风险信息的广泛聚集,因此本文旨在尝试识别与累积异常股票收益(CARs)相关的分解风险信息。设计/方法/方法样本包括标准普尔500指数成份股公司的2558家rd。这些rd在2011年至2017年期间提交了10万份文件。首先,该研究自动提取了35,685个关键短语,这些短语最多出现在1.5%的rd中。其次,本研究对这些关键短语进行了逐步回归,并确定了67(78)个与car呈正(负)相关的关键短语。本文发现,投资者似乎最重视的是最常见的关键短语,略低于1.5%的最罕见关键短语阈值和来自rd的与业务相关的关键短语。此外,投资者似乎将包含不确定性(影响)字样的关键短语视为消极(积极)信号,而不是积极(消极)信号。研究的局限性/启示研究方法的局限性主要在于纳入关键词的选择、对CARs的关注以及逐步回归分析的方法选择。独创性/价值该研究揭示了公司通过在rd中提供量身定制的信息而不是通用短语来增加其rd对股权投资者的信息价值的潜力。此外,研究表明,SEC鼓励的定制rd包含了投资者的相关信息。此外,研究结果可能会引导股权投资者注意相关的文本段落,这些段落的深入分析可能对投资者的资本市场决策有用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
“Red” and “green” flags of risk disclosures – identifying associations between positive and negative key phrases and consecutive cumulative abnormal stock returns
Purpose The usefulness of risk disclosures (RDs) to support equity investors’ investment decisions is highly discussed. As prior research criticizes the extensive aggregation of risk information in existing empirical research, this paper aims to provide an attempt to identify disaggregated risk information associated with cumulative abnormal stock returns (CARs). Design/methodology/approach The sample consists of 2,558 RDs of companies listed in the S&P 500 index. The RDs were filed within 10 K filings between 2011 and 2017. First, this study automatically extracted 35,685 key phrases that occurred in a maximum of 1.5% of the RDs. Second, this study performed stepwise regressions of these key phrases and identified 67 (78) key phrases that show positive (negative) associations with CARs. Findings The paper finds that investors seem to value most the more common key phrases just below the 1.5% rarest key phrase threshold and business-related key phrases from RDs. Furthermore, investors seem to perceive key phrases that contain words indicating uncertainty (impacts) as a negative (positive) rather than a positive (negative) signal. Research limitations/implications The research approach faces limitations mainly due to the selection of the included key phrases, the focus on CARs and the methodological choice of the stepwise regression analysis. Originality/value The study reveals the potential for companies to increase the information value of their RDs for equity investors by providing tailored information within RDs instead of universal phrases. In addition, the research indicates that the tailored RDs encouraged by the SEC contain relevant information for investors. Furthermore, the results may guide the attention of equity investors to relevant text passages whose deeper analysis might be useful with regard to investors’ capital market decisions.
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来源期刊
CiteScore
4.80
自引率
15.80%
发文量
30
期刊介绍: The main objective of the journal is to provide a platform for researchers and practitioners from multiple disciplines to disseminate information on organizational and accounting systems change. To achieve this, the journal will be directed at mapping out contemporary changes in the new global business environment. It will seek to explain the new techniques, processes, and philosophies associated with the rise of strategy-oriented accounting and information systems.
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