Random walk : its description & usage

This article deals with one of the most popular capital market approach - Random walk theory. There are fundamental elements, features and one basic example of this attitude described in here. Random Walk Theory denies other analysis, such as psychological, technical or fundamental, because of more reasons. These could be for example, bad or useless information, buy and sell timing and others. A protagonist of this theory says that it is not possible to outperform a particular market if any additional risk is assumed. On the other hand, critics of Random walk theory contend that assets do maintain price trends - there is a chance to outperform the market if the selecting exit and entry points for investments are carefully selected.