PublicationWhy Have Estimate Revision Measures Not Worked?WhyHaveEstimateRevisionMeasuresNotWorked?By Peter Xu — Mar 10, 200815 mins readShareMailLinkedInTwitterCopy URLShareInvestigates why excess returns and positive revisions of earnings estimates were negatively correlated in the years 1992-2004. Read MoreBy Peter XuCo-Head of Quantitative Equity, QMA