What the gradual turn away from modern portfolio theory holds for value investing.
by Bruce Greenwald
"The finance discipline is in the process of a halting transition. The efficient markets/modern portfolio theory is giving way to broader perspectives that incorporate the realities of information asymmetry — the fact that all market participants do not have the same access to relevant information — and deeply ingrained behavioral biases that often dominate actual financial market outcomes. At the leading business schools these latter approaches are now firmly established even though in the finance profession at large they remain relatively unfamiliar."