An Appraisal of Research Designs Used to Investigate the Information Content of Audit Reports.
指出，用股价研究法分析审计报告信息含量时，难以排除其他信号成分的干扰，导致部分结论有误，并提出了改进的研究策略。
Abstract ABSTRACT: To draw conclusions about the information content of audit reports, one must isolate the effects of information conveyed specifically by audit-report components of aggregate signals. To do so, the information conveyed by other components of the aggregates must be controlled. This paper argues that, for most types of audit reports, the necessary control cannot be exercised with security-price research methods Accordingly, some inappropriate inferences have been drawn about the information content of certain types of opinions. Research strategies to provide and implement the necessary control are suggested.