讲座人：张亚男

讲座主题：XBRL Adoption and Expected Crash Risk

摘要：We examine the economic consequences of Extensible Business Reporting Language (XBRL) in the US setting. In specific, we investigate whether and how adoption of XBRL impacts investors’ expectation of future crash risk. Using the steepness of the volatility smirk as a proxy for ex ante expectation of crash risk, we find that expected crash risk decreases after the adoption of XBRL. The impact of XBRL adoption on expected crash risk is more pronounced for firms with higher financial opacity, more volatile earnings, more volatile cash flows, greater analyst forecast dispersion, and larger market-to-book ratio. Moreover, the analysis generates evidence that the use of customized extension XBRL elements attenuates the effect of XBRL reporting on reducing expected crash risk. Additionally, we investigate the potential mechanisms through which XBRL adoption reduces investors’expectation of future crash risk, and we find that improved financial statement comparability is one possible channel through which XBRL affects the expected crash risk. The empirical results are robust to a variety of sensitivity checks. Overall, the findings indicate that XBRL reduces information processing costs and strengthens information transparency of capital markets, which in turn, reduces investor expectations of future crash risk.

讲座时间：2016年10月19日，周三，13:30开始

讲座地点：学院南路校区主楼218专用教室

讲座人简介：张亚男，威斯尼斯人会计学院讲师。本科和硕士就读于武汉大学；博士就读于香港城市大学。研究领域：会计信息质量，公司治理，股价崩盘风险，供应链。

[编辑]：张萌