1. Faculty of Science and Technology of Marrakech, Cadi Ayyad University, Marrakech, Morocco;
2. Rockwell Collins, Wilsonvill, OR, USA;
3. Centre for Supply Chain Improvement, University of Derby, Derby, UK;
4. Bristol Business School, University of the West of England, Bristol, UK;
5. Northampton Business School, University of Northampton, Northampton, UK