This study investigates the relationship between the news effect and the abnormal returns. The content analysis is applied to quantify the public news related to the listed stocks in the Taiwan Stock Market. By Referring to Demers and Vega (2011), this study constructs the net optimism of public...

This study investigates whether the news release prior to the earnings announcement would influence different investors' trading behavior during the earnings announcement periods. We bridge the gaps between this study and the previous analyses that the technology of text mining is applied to...

This study constructs the institutional- and individual-based probability of informed trading (PIN) by adjusting Easley, Hvidkjaer and O'Hara (2002) and investigates the impact of the informed trading behaviors of institutions and individuals on the post-announcement drift around the earnings...