Research on the Expansion of Audit Reports and the Audit Expectation Gap

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K02032
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 07100:Accounting-related
• Research Institution: Kurume University
• Principal Investigator: Ijima Sugako 久留米大学, 商学部, 教授 (20336069)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 監査上の主要な検討事項 / ＫＡＭ / 監査の期待ギャップ / 監査の透明性 / 監査報告書の情報価値 / 監査報告書の変革

Outline of Final Research Achievements

Auditors has been required to include “Key of Audit Matters (KAM)” in Independent Auditors’ Report since the fiscal year ending March 2021, in Japan.
This study demonstrated the significance and effectiveness of KAM and clarified the characteristics of KAM in Japan. This study theoretically demonstrated that KAM has the effect of reducing Audit Expectation Gap by contributing to audit transparency and the information value of Independent Auditors’ Report. In addition, this study analyzed the KAM quantitatively and qualitatively using data for the fiscal years ending March 2020 and March 2021. As a result, this study clarified the characteristics and trends of KAM and indicated implications for the future of KAM in Japan.

Free Research Field

会計監査

Academic Significance and Societal Importance of the Research Achievements

日本でも２０２１年３月期決算から監査報告書に「監査上の主要な検討事項（ＫＡＭ）」を記載することが義務づけられた。ＫＡＭは，これまで表に出ることのなかった監査人の監査判断や監査手続等をふくむため，監査報告書のあり方を大きく変える可能性がある。それゆえ，ＫＡＭについての理論的研究に加えて，実際のＫＡＭに基づく実証研究は，喫緊の課題であるといえる。
このような状況において，ＫＡＭの意義や効果を論証し，早期適用事例と強制適用初年度のすべてのＫＡＭを定量的かつ定性的に分析し，日本におけるＫＡＭの特徴と傾向を明らかにした本研究は，学術的意義はもちろん，社会的意義も大きい。