**About the Editor**

**Miltiadis Chalikias** is Professor of Statistics and Mathematics at the Department of Accounting and Finance of the University of West Attica. He holds a Ph.D. in Statistics from the National and Kapodistrian University of Athens. He is the author of several scientific articles, books, and chapters. His work is cited by several authors. His principal research interests are in the areas of business mathematics, business statistics, qualitative methods, and multivariate analysis.
