Intellectual Capital Disclosure in Knowledge Rich Firms: The Impact of Market and Corporate Governance Factors

Abstract

Intellectual capital disclosure (ICD) in corporate annual reports has received growing European attention. To date, few studies have undertaken systematic analysis of the factors influencing the decision to disclose Intellectual Capital (IC) related information in annual reports. The purpose of this paper is to examine whether the level of hidden value (market-to-book ratio), share price volatility, listing age, board composition, ownership structure, audit committee size and directors’ shareholding, in addition to other firm specific factors influence ICD in 100 UK listed knowledge-rich firms. The dependent variable is measured by a 183 item index score, supported by word count and percentage of IC word count metrics to assess the extent, volume and focus of ICD respectively. Results of the analysis based on the three measures indicate significant association with hidden value, using market-to-book ratio as a proxy, and listing age. We further find firm size, share price volatility, director shareholding, audit committee size, and ownership concentration to be associated with ICD in a manner consistent with theoretical expectations. The implications of these findings, hitherto largely untested, are explored from a number of theoretical perspectives.