Supply the missing words:
“There are three forms of the efficient-market hypothesis. Tests of randomness in stock returns provide evidence for the______ form of the hypothesis. Tests of stock price reaction to well-publicized news provide evidence for the_____ form, and tests of the performance of professionally managed funds provide evidence for the______ form. Market efficiency results from competition between investors. Many investors search for new information about the company’s business that would help them to value the stock more accurately. Such research helps to ensure that prices reflect all available information; in other words, it helps to keep the market efficient in the______ form. Other investors study past stock prices for recurrent patterns that would allow them to make superior profits. Such research helps to ensure that prices reflect all the information contained in past stock prices; in other words, it helps to keep the market efficient in the______ form.”
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