This study investigates synergies between individual and national variables that promote opportunity and necessity entrepreneurship with a framework based on the national system of entrepreneurship. A qualitative comparative analysis of fuzzy sets of 39 country cases shows that institutional or...

The Vehicle Routing Problem (VRP) is one of the most studied topics in Operations Research. Among the numerous variants of the VRP, this research addresses the VRP with relaxed priority rules (VRP-RPR) in which customers are assigned to several priority groups and customers with the highest...

In this work, we extend the time-dependent vehicle routing problem with time windows on a road network by considering two types of vehicles, large and small, to serve customers. Motivated from city logistics applications, large vehicles are forbidden from the downtown area. Accordingly, goods...