A Study On The Measurement System Of The Accounting Information Quality In The Perspective Of Investor Protection

On the basis of a large number of facts and research studies, nations and regions where good investor protection systems and regulations in place, would have stronger capital market, also would expect a faster development in economy. Accounting, due to its functions in pricing and governancing, as well as through an approach of clarifying and providing related information to the property right owner, becomes increasingly important in the protection of the rights and properties of investors. Therefore, accounting in fact is a property rights accounting, which can be seen as a mechanism for protecting investors. Thus, how to establish a scientific accounting information quality measurement system that can be use in protecting investors? The measurement system is critically important for investors in assessing the quality of accounting information, evaluating enterprises'firm value, and finally making investments.This thesis reports a research study investigating the quality of accounting information from a perspective of protecting investors in the context of Chinese marketing and political environments. This study, on the basis of reviewing both domestic and international literature, adopted economics theories, such as property theory, agency theory, information asymmetric theory and capital assets pricing model, followed a mixed research approach combing normative research and positivist research methodologies.The research objectives includes:(1) adopting economics theories, such as property theory, agency theory, information asymmetric theory and capital assets pricing model, to analyze accounting information from the perspective of protecting investors; (2) analyzing the present systems of accounting information supervision and management from the perspective of protecting investors in the Chinese social context; (3) investigating and establishing accounting information measurement system for the protection of investors from analytical dimensions of information generation, dissemination, certification, etc.; (4) establishing a accounting information measurement system model employing AHP and Range Transformation analysis approach and using the data of share A non-financial companies listed in Shenzhen Stock Exchange in 2010 as the research sample. Finally, the study also testing the model using a positivist research approach. Through the investigation on the accounting information measurement in protecting investors, this research study has made the following achievements:(1) This study established a theoretical system in accounting information measurement for investor protection, which considers accounting information is a nonstandard public product, which can be used in pricing and governance and is the foundation in achieving investor protection.(2) This study developed an accounting information quality measurement system from three dimensions, namely, the quality of financial reports, quality of information disclosure and audit.(3) Moreover, this study constructed a theoretical model in accounting information measurement model for investor protection and verified the validity of the model. These conclusions could be very important to future research in investor protection and accounting information quality assessment investigations, to finalise and improve information quality measurement system, enhancing the investors'ability in assessing accounting information and the implementation of information.