Authors

Universidade Nova de Lisboa, Lisbon, Portugal

Faculty of Economics, University of Split, Split, Croatia

King Saud University, Riyadh, Saudi Arabia

University of Calgary, Calgary, Canada

King Abdulaziz University, Jeddah, Saudi Arabia

Rovira i Virgili University, Tarragona, Spain and Institute of Mathematics and Computer Science, Academy of Sciences of Moldova, Chisinau, Moldova

King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia

University of Tokushima, Tokushima, Japan

University of Limerick, Limerick, Ireland

Universiti Teknologi Malaysia, Johor Bahro, Malaysia

Sungkyunkwan University, Suwon, Republic of Korea