Most investors spend their time worrying about selecting individual stocks and mutual funds: big mistake! Modern Portfolio Theoryโdeveloped in 1952 by economics Nobel Prize winner Harry Markowitzโshows that itโs more important to focus on how our securities interact as a whole. Astonishingly, most investorsโincluding many professionalsโstill run their investment accounts the same way people did back when โHow Much Is That Doggie In the Windowโ played on the Hit Parade. Itโs time to apply what weโve learned in financial economics over the past 50 years to bring your portfolio into the rock-โn-roll era. Armed with a computer, you, the investor, can use sophisticated tools to analyze your holdingsโtools that would have been the envy of the biggest money managers only a decade ago. First among these is the Monte Carlo simulator: the better mousetrap that investors have been waiting for. With their trademark wit, Ben Stein and Phil DeMuth show you how your current portfolio is radically underdiversified, costing you money. They offer step-by-step instructions to supercharge it across a variety of investment situations to get you the best risk-adjusted returns.