There has been a long tradition of research on the relation between diversification and performance of public corporations in the strategy and finance fields. A

Portfolio Diversification provides an update on the practice of combining several risky investments in a portfolio with the goal of reducing the portfolio's ove

A proven way to put together a portfolio that enhances performance and reduces risk Professor Craig Israelsen of Brigham Young University is an important voice

Diversification is a core principle of investing. Yet money managers have not applied it to their own ranks. Only around 10 percent of portfolio managers—the