Thu 10 Aug 2006
An important point, philosophy, or whatever is the fact that “the market” is not efficient.
This flies in the face of much academic theory stating that the markets are efficient, and that one assumption is the basis for much of the modern portfolio theory (MPT) and capital asset pricing model (CAPM). That one assumption is why these are both flawed theories (even nobel winners can be flawed).
The market (and in this way I refer to markets in general, not just the equity markets) is not efficient, it is instead an efficiency process. This is important, as it explains why any of us can take above average profits out of the market over the long term. (The average profits would be dictated by the growth of the economy.)