The Usefulness of Voluntary Disclosure to Investor's Judgment

The purpose of this study is to investigate the relationship between the usefulness of voluntary disclosure based on the macro components of the International Accounting Standards Board and the judgment of investors in the companies admitted to the Tehran Stock Exchange during the period of 2011 and 2015. To this end, 127 companies were selected using systematic elimination sampling method and tested using the Mechelli, Cimini and Mazzocchetti model. A checklist to measure the voluntary disclosure of companies with five dimensions of business nature, goals, business strategies, resources, risks and communications, results of company operations and performance measurement criteria was used. The findings show that, in general, voluntary disclosure of the main components of the business model provides a higher value relation than the limited disclosure components. Based on these findings, it is suggested that corporate executives with more attention to these indicators provide more precise conditions for users of financial statements.