00756nam0-22002531i-450-990002836340403321000283634FED01000283634(Aleph)000283634FED0100028363420000920d1991----km-y0itay50------baENGEssays in stock market efficiency and timevaying risk premiaAndrea BeltrattiTorinoGiappichelli1991173 p.24 cmBeltratti,Andrea<1959- >115285ITUNINARICAUNIMARCBK9900028363404033216-BIS-183126 DEAECAECAEssays in stock market efficiency and timevaying risk premia416947UNINAING01