Firstly, financial reports are normally prepared by the management of the company who are not the owners but are involved in managing the company. They possess more information than the shareholders and stakeholders so information asymmetry arises between them. Without regulation, even though management might disclose relevant accounting information voluntarily in order to get funding, the degree of credibility and completeness of information is unclear. According to the analysis of Lang and Lundholm, the accounting disclosures specifically for firms that make equity offerings has a significant increase within the six months before the offering occurs particularly in those categories the firm has discretion (cited in Healy and Palepu 2001, p.421). It shows that the business might not disclose all relevant information to users or is withholding information unless the disclosures is for their benefits, which posts a question of the reliability of voluntary disclosures. Furthermore, the existence of asymmetric information will lead to inequality of opportunity and returns among investors. According to Schroeder (cited in Lee, Rosenthal and Gleason 2004, p.79), before Regulation Fair Disclosure imposed in America, Wall Street brokerage companies and their best customers managed to reap trading profits before most investors
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