By Doug French
No wonder investors don't take economists seriously. Or if they do, they shouldn't. Since Richard Nixon interrupted Hoss and Little Joe on a Sunday night in August 1971, it's been one boom and bust after another. But don't tell that to the latest Nobel Prize co-winner, Eugene Fama, the founder of the efficient-market hypothesis.
The efficient-market hypothesis asserts that financial markets are "informationally efficient," claiming one cannot consistently achieve returns in excess of average market returns on a risk-adjusted basis.
"Fama's research at the end of the 1960s and the beginning of the 1970s showed how incredibly difficult it is to beat the market, and how incredibly difficult it is to predict how share prices will develop in a day's or a week's time," said Peter Englund, secretary of the committee that awards the Nobel Prize in Economic Sciences. "That shows that there is no point for the common person to get involved in share analysis. It's much better to invest in a broadly composed portfolio of shares." [Read more...]