Find below some interesting thoughts on financial markets and the efficient market theory. That theory essentially says the market prices are right given the available information. I think markets are somewhat efficient but there are plenty of opportunities to profit from inefficiencies in the market. Still it is not easy to consistently exploit these inefficiencies profitably.
Theory has ignored the real world complication that investors delegate virtually all their involvement in financial matters to professional intermediaries – banks, fund managers, brokers – who dominate the pricing process.
Delegation creates an agency problem. Agents have more and better information than the investors who appoint them, and the interests of the two are rarely aligned.
he new approach offers a more convincing interpretation of the way stock prices react to earnings announcements or other news. It also shows how short-term incentives, such as annual performance fees, cause fund managers to concentrate on high-turnover, trend-following strategies that add to the distortions in markets, which are then profitably exploited by long-horizon investors. At the level of national markets and entire asset classes, it will no longer be acceptable to say that competition delivers the right price or that the market exerts self-discipline.
Related: Nicolas Darvas (investor and speculator) – Beating the Market, Suckers Game? – Lazy Portfolios Seven-year Winning Streak – Stop Picking Stocks? – Don’t miss future gains just because you missed past gains