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(c) It is believed by financial economists that the random walk model is a good description of the logarithm o stock prices. It implies that

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(c) It is believed by financial economists that the random walk model is a good description of the logarithm o stock prices. It implies that the percentage changes in stock prices are un orcastable. A financial analyst claims to nave a new model that makes better p. edictions than the random ..alk model rapmin how you would examine the analyst's caim toat his model is superior

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