This article investigates whether the Japanese Financial Services Agency's mandatory use of XBRL affects investors in assessing the financial information. Although regulators expect the introduction of XBRL to enhance the transparency and quality of business reporting, given the non-trivial...

We examine Japanese stock market responses to the disclosure of internal control weaknesses (ICW), especially in relation to other information released around the disclosure date and to firm attributes. Japan is classified as a code-law country, where corporate disclosure tends to be less timely...