The Research On The Segment Report Quality Of Listed Company

With the trend of business merger and economic globalization, business operations are no more confined to a certain industry or area. The trend of multiple unit and cluster in listed companies can not be reversed. More and more people pay more attention to segment report, because segment report can provide more detail information to the users. But whether the listed companies can provide the perfect segment information for users or not, and the information is good to the decision-making or not are doubted. Researching about such questions makes sense to improve the quality of segment report.Through researching the accounting guidelines of China about segment report. I find there are many problems. Especially there are many differences between the different guidelines, which make the providers more randomly during making the segment reports. Therefore the information of segment report can not reflect the real instance of companies just according to the requirement of guidelines. At the same time, whether the users can comprehend the segment report is relative to the abilities of understanding, the knowledge etc.Based on the actuality of our country, this dissertation set about the research from two main characteristics of information quality (That is the relevancy and reliability), and analyze the quality standard of segment report synthetically. During the process of analysis, the dissertation selects many samples of Shanghai market to analysis the reliability of segment report and the factors which affect the quality of segment report. The dissertation classifies the listed companies and applies event study, and uses abnormal returns as the guidelines. Through researching the relation between share-list and segment report, appraise the relevancy of segment report. Finally, the dissertation points the revelation and some advices from the research.