In: Accounting
How is the market efficient hypothesis relevant to financial reporting?
The efficient market hypothesis (EMH)relates to the ability of capital markets to generate prices for securities that reflect worth. The EMH implies that publicly available information is fully reflected in share prices. The market will not be efficient if the market does not have access to relevant information or if fraudulent information is provided. There seems to be little doubt that the FASB and the SEC assess the impact of the iractions on security prices. The SEC has been particularly sensitive to insider trading because abnormal returns could be achieved by the use of insider information.
If the market is efficient, investors may be harmed when firms do not follow a full disclosure policy. In an efficient market, the method of disclosure is not as important as whether or not the item is disclosed. It should not matter whether an item is disclosed in the body of the financial statements or in the footnotes. It is the disclosure rather than how to disclose that is the substantive issue.
Usually there is a cost to disclose. An attempt should be made to determine the value of additional disclosure in relation to the additional cost. Disclosure should be made when the perceived benefits exceed the additional cost to provide the disclosure.
It is generally recognized that the market is more efficient when dealing with large firms trading on large organized stock markets than it is for small firms that are not trading on large organized stock markets.
Although the research evidence regarding the EMH is conflicting, this hypothesis has taken on an important role in financial reporting.