Articles by James DiLellio, PhD, MBA

James DiLellio, PhD, MBA, is a practitioner faculty of decision sciences at the Graziadio School of Business and Management at Pepperdine University, where he teaches undergraduate and graduate business courses in applied statistics and quantitative analysis. His research interests are primarily in the area of nonlinear optimization and Kalman filtering techniques for solving decision analysis problems in investing and finance.

What to Do when Traditional Diversification Strategies Fail – Revisited

Reduced costs of trading commissions are a welcome new benefit of using ETFs as portfolio building blocks, but the cost of the bid-ask spread can be significant if low-volume ETFs are mixed into a diversified portfolio.

2010 Volume 13 Issue 4 - By James DiLellio, PhD, MBA

What to Do When Traditional Diversification Strategies Fail

Many factors contribute to volatile market behavior. This article explores a methodology that attempts to address these factors.

2009 Volume 12 Issue 4 - By James DiLellio, PhD, MBA