Summary: | 碩士 === 國立政治大學 === 會計學系 === 104 === Studies show that the information of defined benefit due its complexity, users may not have the competence to process it. In the post-SFAS-158 period, the previously disclosed liabilities of defined benefit now recognize in the balance sheet. Prior studies have already shown an improvement in value relevance. However, studies suggest the relevant information still presents in footnotes. It leaves a place for XBRL for further improving. In this study, I investigate whether SEC XBRL mandatory adoption improves the value relevance of defined benefit information, also whether the characteristics of XBRL file affect the value relevance of defined benefit. The empirical results show SEC XBRL mandatory adoption improves the value relevance of funded status. Also, the number of GAAP Taxonomy concepts is negatively associated with the value relevance of funded status. Moreover, the number of extension concepts is positively associated with the value relevance of funded status. The additional results show the improvements by XBRL adoption and the influence of the number of GAAP Taxonomy concepts and extension concepts are sensitive to different phases of the adopters.
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