The identification, management and disclosure of risks have been the subject of recent legislation, directives and reporting standards issued across a number of international jurisdictions. To inform the disclosure debate, this paper provides a detailed analysis of the risk warning disclosures...

This paper shows that short horizon stock returns can be predicted to a much greater degree by past price movements than would be anticipated given their low autocorrelation. This raises doubts over the reliability of the autocorrelation statistic as a measure of stock market predictability.