Most of the empirical literature on the relationship between firm value and knowledge capital is based on the stock market valuation. We use a credit rating score as an alternative measure. Innovative firms with a reasonable knowledge stock achieve a better rating, whilst too many innovative...

Most of the existing empirical literature on the relationship of firm value and knowledge capital is based on the stock market valuation of companies. However, the assets of many firms are not publicly traded, and hence the calculation of market value is limited to a subsample of firms. We...