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Im Mittelpunkt dieser Arbeit steht die Analyse der Vor- und Nachteile einer geglätteten versus aktuellen Informationsbasis in einem theoretischen Modell. Am Beispiel stabiler Agency-Ratings und volatiler marktbasierter Ratings zeigt sich, dass die Effekte der Berichtsmethode von den...
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Fama (1970) defined an efficient market as one in which prices always “fully reflect” available information. This paper … market is completely characterized by the absence of both arbitrage opportunities and dominated securities, an insight that …
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, securities prices move freely, and sometimes volatile and unpredictable. This article argues that in the absence of objective …, movement in share prices …
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This article examines the claim of securities markets efficiency based on the efficient markets hypothesis (EMH), which …, securities markets remain competitive. This article explains the need for a new theory which incorporates behavioural aspects of …
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