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EFFICIENT MARKET HYPOTHESIS

Eugene Fama was an undergraduate student at Tufts University when he first began to develop an interest for economic theory (Tuft’s E.Newz). Mr. Fama worked for a professor who was trying to develop a “buy - sell” formula for the securities market based on price momentum (News-School). The phenomena accompanied with his study, plus the skills that he acquired while evaluating stock market data, drew Mr. Fama to the University of Chicago where he would finally develop what is known today as the “Efficient Market Hypothesis”.
INTRODUCTION
This paper reviews the theoretical and empirical evidence on the “Efficient Markets Hypothesis”. After a discussion of the theory and its relevant forms, empirical work concerned with the adjustment of security prices to the three relevant information subsets is considered. First, weak form tests, in which the information set is just historical prices, are discussed. Then the semi-strong form tests, in which the concern is whether p...

Posted by: Rainey Day

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