Roll [1988] observes low R2 statistics for common asset pricing models due to vigorous firms-specific return variation not associated with public information. He concludes (p. 56) that this implies quot;either private information or else occasional frenzy unrelated to concrete information.quot;...

Roll (1988) observes low R2 statistics for common asset pricing models due to vigorous firms-specific returns variation not associated with public information. He concludes (p. 56) that this implies quot;either private information or else occasional frenzy unrelated to concrete information.quot;...

Roll [1988] observes low R2 statistics for common asset pricing models due to vigorous firm-specific return variation not associated with public information. He concludes that this implies “either private information or else occasional frenzy unrelated to concrete information” [p. 56]. We...

Roll (1988) observes low R2 statistics for common asset pricing models due to vigorousfirms-specific returns variation not associated with public information. He concludes (p. 56) that this implies acirc;not;Seither private information or else occasional frenzy unrelated to concrete...

Roll [1988] observes low "R"-super-2 statistics for common asset pricing models due to vigorous firm-specific return variation not associated with public information. He concludes that this implies "either private information or else occasional frenzy unrelated to concrete information"[p. 56]....