Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Learn how Harry Markowitz's Modern Portfolio Theory transformed investment strategies by focusing on diversified portfolios ...

He overturned the traditional approach to buying stocks by examining the relationship between risk and reward. By Robert D. Hershey Jr. Harry M. Markowitz, an economist who launched a revolution in ...

With the publication of his simply titled dissertation, "Portfolio Selection," 55 years ago, Harry Markowitz, a doctoral candidate in economics at the University of Chicago, presented the investment ...