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Sabrina has been using crossover (which is a technical analysis strategy) over the past 3 years by comparing the short-term moving average against the long-term
Sabrina has been using crossover (which is a technical analysis strategy) over the past 3 years by comparing the short-term moving average against the long-term moving average to identify buy or sell signal. She has earned consistent abnormal returns based on this strategy. Please explain the efficiency of the market (i.e. inefficient/weak-form/semi-strong form/strong form) and give reasons for your answer.
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