Using a sample of petroleum refining firms, this paper provides evidence that earnings sensitivity measures analogous to those mandated by the SEC's (1997) new market risk disclosure rules are positively associated with stock market determined oil price exposures. We also find that earnings...

Campbell, Lettau, Malkiel and Xu (2001) show that stock returns of individual firms have become more volatile in the U.S. since 1960. We hypothesize and find that deteriorating earnings quality is associated with higher idiosyncratic return volatility over the period 1962-2001. These results are...

In this study we investigate the role played by managerial actions in explaining stock market returns and accounting earnings of 57 Internet firms engaged in Business-to-Business (B2B) e-commerce. We classify 3,166 managerial actions undertaken by our sample firms between the firm's IPO date and...