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J. M. Keyes put all his money in one stock, and the stock doubled in value in a matter of months. He did this three times in a row with three different stocks. J. M. got his picture on the front page of the Wall Street Journal. However, the paper never mentioned the thousands of investors who made similar bets on other stocks and lost most of their money. This is an example of the ________ problem in deciding how efficient the markets are.

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eooyibo123

Answer:

Lucky event

Explanation:

In the investments market a true measure of market efficiency is to get a track record of positive outcome from investors over time.

The lucky event problem occurs when an investor makes a profit on investment not because of how efficient a market is or by a logical procedure, but rather by chance.

In the given scenario Keyes put all his money in one stock that doubled in 3 months.

However this was not replicated among other investors who made similar vets on other stocks and lost.

This is an exams of lucky event problem in determining market efficiency.

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