Chapter 20 Improving Bank Efficiency and Reducing Asymmetric Information through Innovation on Extensible Business Reporting Language

Banks are intermediary institutions that play an important role in accelerating economic growth. Therefore, banks need to implement policies to improve the efficiency and quality of digital finance, namely through the Extensible Business Reporting Language (XBRL), which developed amid Society 5.0. However, the application of XBRL does not completely rule out the possibility of information asymmetry. Therefore, this study aims to analyze the effect of Extensible Business Reporting Language (XBRL) on asymmetric information with corporate disclosure as a moderating variable (expected to reduce information asymmetry) and analyze the effect of XBRL and control variables (size, turnover, stock price) on information asymmetry. The sample used is conventional banks that have been listed on the IDX and are not delisted, from 2015, since the implementation of XBRL until 2019 using the panel data regression method. The results obtained are that information asymmetry decreases with the application of XBRL, where corporate disclosure is a moderating variable. For the results of the control variable, the larger the size, the less information asymmetry and turnover. As for the stock price, the higher the stock price, the higher the information asymmetry.