The Relationship between Corporate's Ranking Based on Financial and Non-Financial Indexes and Voluntary Disclosure Level

The main aim of this study is to assess the relationship between corporate ranking based on financial and non-financial indexes and voluntary disclosure level. Fundamental analysis was used for corporate's ranking. Voluntary disclosure level was measured in 6 overall parts based on Botson's (1997) model. The study involved a sample of companies in Tehran Stock Exchange. Considering the desired restrictions, 49 companies were selected and studied over a period of 5 years (1387-1391). Corporate's ranking based on financial and non-financial indexes as an independent variable and voluntary disclosure level as the dependent variable were analyzed. Regression analysis showed no significant relationship between corporate's ranking and voluntary disclosure level. Also, it was found that there is no relationship between corporate's rank upgrading and voluntary disclosure level.