Robert Haugen’s textbook, Modern Investment Theory (first published in the 1980s with multiple subsequent editions), served as a definitive guide for university students and finance professionals. The text meticulously breaks down how markets operate, how security prices are determined, and how investors can maximize returns for a given level of risk. 2. Core Pillars of the Traditional Theory
He spent the rest of the night rebuilding his thesis. Instead of assuming rationality, he assumed irrationality. Instead of chasing beta, he looked for the inefficiencies Haugen described—the small cap stocks, the value stocks, the low volatility anomalies. modern investment theory robert haugen pdf