Mainstream economics and finance theories hold that markets immediately adjust to new information. While market prices do ...

Weak form market efficiency is a concept that suggests past stock prices and trading volumes do not predict future stock prices. In a weak form efficient market, all historical information is already ...

The famed efficient market hypothesis, or EMH, is widely accepted by academics and modern investors. The hypothesis states that stock prices reflect all available information at any given time, making ...

I began this article with the goal of addressing an academic notion, the efficient-market hypothesis, or EMH. My research dissuaded me. In one University of Chicago article, a faculty member questions ...

The return on equity and its more expansive variant, the return on invested capital, measure what a company is making on the capital it has invested in business, and is a measure of business quality.

The April 11 issue ofMoney Managementfeatured Robert Keavney’s Messenger article. While I respect Robert, I am afraid that his article could produce many misunderstandings of Efficient Market Theory ...