Random walk theory explains the concept of efficient markets. The markets are described as efficient because they impound information whether private or public very quickly and reflect it in the prices of stocks traded. Investors therefore cannot outperform the markets based on the information...

Investigating if the market is efficient is an old issue as market efficiency is imperative for channeling investments to best-valued projects and its importance endures. There is contradictory evidence in the literature provided by empirical researches. The primary purpose of this research has...

We revisited the issue of return predictability in three major developed markets (USA, UK and Japan) using a unique dataset from the Wharton Research Data Services database and a comprehensive set of traditional and recent statistical methods. We specifically employed a variety of traditional...

Recent literature in empirical finance is surveyed in its relation to underlying behavioral principles, principles which come primarily from psychology, sociology, and anthropology. The behavioral principles discussed are: prospect theory, regret and cognitive dissonance, anchoring, mental...