The Intangible Assets in Listed Companies in Tehran Stock Exchange and Their Impact on the Value Relevance

Company valuation methods have been improved by the knowledge-based economy. Significant gap between corporate market value and accounting book value had led to numerous researches in «unexplained value» or «hidden reserve». Even though there are few surveys on intangible assets in Iran، Empirical studies in advanced marketsdemonstrate the importance of these assets. This study aims to examine the relationship betweenintangible assets and corporate market value oflisted companies in Tehran Stock Exchange (TSE). For this purpose، the sample including 1468 observations (Year- Company) of listed companies in TSE over 2006 to 2011 has been collected and hypothesizes were tested using «Landsman''s balance sheet identity model». According to the findings، intangible assets are correlated with corporate market value. In addition، upward trend in recognizing the value of intangible assets has been seen. It is notable that، tangible assets have a dominant role in valuating listed companies in TSE with descending trend in explaining corporate market value.