Assay the Effect of Information Asymmetry on Abnormal Changes in Cash of Companies Listed in Tehran Stock Exchange

This study examines the impact of information asymmetry on abnormal changes in cash of companies listed in Tehran Stock Exchange. This research has performed on 111 companies over the period 1388 to 1392. Research findings show that over the course of the study, information asymmetry significantly positive effect on abnormal changes in cash and cash positive abnormal changes. The results suggest that information asymmetry no significant effect on negative abnormal changes in cash.