Many theorists examine the behavior of stock prices, and the random walk hypothesis attempts to explain why stocks move the way they do. The random walk hypothesis states that stock market prices ...

Scientific progress depends on results that can be repeated – yet across disciplines, too many experiments fail that test.

For many financial professionals, Burton Malkiel's classic has served as a trusted guide for nearly 50 years. Many investors use it to understand how markets work. This review takes a closer look at ...

According to the “random walk” hypothesis, markets are inherently unpredictable. This hypothesis was the force behind the creation of index funds that were designed to simply replicate the returns of ...