NK model describes a system of N elements. The complexity of the system is modeled as the interdependency among its elements. Such interdependency is represented by parameter K, which denotes the number of elements that affect the function of a particular element. NK model can be used to...

A new routing problem is introduced and named as the probabilistic profitable tour problem in this paper. The problem is defined on a complete graph where profits are associated with the vertices and travel costs are associated with the edges. Each vertex (customer) has a probability of...

A major challenge faced by hospitals is to provide efficient medical services. The problem studied in this article is motivated by the hospital sterilization services where the washing step generally constitutes a bottleneck in the sterilization services. Therefore, an efficient scheduling of...

Purpose: Although foreign ownership has been widely studied to show its impact on firm performance, the findings are mixed and the underlying rational to explain the impact is not entirely clear. The purpose of this study is to determine if there is a direct relationship between foreign...