The Relation between Accounting Conservatism and Cost of Capital

This article investigates " the relation between accounting conservatism and cost of capital". Accounting conservatism is measured with two measures, asymmetric timeliness of earnings that is income measure and Market To_ Book ratio (MTB) that is balance sheet measure. So in this research the relation between accounting conservatism and cost of capital tested not for the all firm but also for the portfolio of the firm. The sample includes 86 firms listed in Tehran Stock Exchange, a period from 1999 to 2007. The results show: There is a negative relation between accounting conservatism and cost of capital by using portfolio of the firm based of asymmetric timelines, in addition the results show that there is a positive relation between accounting Conservatism measured by MTB and cost of capital.