The efficient market theory is one of the better models in the sense that it can be taken as true for every purpose I can think of. For investment purposes, there are very few investors that shouldn't behave as if markets are totally efficient.
Eugene FamaActive management is a zero-sum game before cost, and the winners have to win at the expense of the losers.
Eugene FamaI don't even know what that means. People who get credit have to get it from somewhere. Does a credit bubble mean that people save too much during that period? I don't know what a credit bubble means. I don't even know what a bubble means. These words have become popular. I don't think they have any meaning.
Eugene FamaAfter taking risk into account, do more managers than you’d see by chance outperform with persistence? Virtually every economist who studied this question answers with a resounding 'no.'
Eugene Fama