Prior research shows that easily discernable patterns in earnings -- strings of earnings increases (decreases) and breaks in such strings -- affect investors' long-term valuation of stocks. We examine short-term market reaction before, during, and after earnings announcements to formally test...

We examine an effect of Regulation Fair Disclosure (Reg FD) on voluntary public managerial guidance information quality. Results suggest that the information quality of public guidance has not deteriorated after RegFD. We also examine separately the effect of Reg FD on information efficiency...