In this paper we derive the worst-case ratio of an online algorithm for the Traveling Salesman Problem (TSP) with two disclosure dates. This problem, a variant of the online TSP with release dates, is characterized by the disclosure of a job’s location at one point in time followed by the...

In recent years it has become increasingly important for companies to ensure strategically aligned behaviour, i.e., employee actions that are consistent with the company’s strategy. This study provides insights into the way companies can stimulate such behaviour through motivating and...

The value of networks as an integral part of the explanation of entrepreneurial success is widely acknowledged. It is unclear, however, in what way certain networks influence the success of start-up companies. The question of this paper is: 'in what way does the entrepreneur's network contribute...

The coordination of just-in-time production and transportation in a network of partially independent facilities to guarantee timely delivery to distributed customers is one of the most challenging aspects of supply chain management. From the theoretical perspective, the timely...

This paper explores whether the manager’s physical office work environment can stimulate the manager’s creativity. A total of 60 managers from a large manufacturing company participated in the study. They rated the creativity potential and physical elements of office environments...

Reflexivity -the extent to which teams reflect upon and modify their functioning- has been identified as a possible key factor in the effectiveness of work teams. The aim of the present study was to develop a questionnaire to measure (aspects of) reflexivity, with a focus on team reflection. The...

This paper studies the performance of static and real-time scheduling approaches in vehicle-based internal transport (VBIT) systems, which can be found in manufacturing and warehouse facilities. We propose three heuristic approaches for static VBIT problems (insertion, combined and column...

This paper tests whether hedging currency risk improves the performance of international stock portfolios. We use a generalized performance measure which allows for investor-dependencies such as different utility functions and the presence of nontraded risks. In addition we show that an...

This paper will discuss the phenomenon Mystery Shopping in the field of customer satisfaction measurement techniques. By using the literature about Mystery Shopping definitions and restrictions of this instrument will be presented. Also, possible ways to present and use the gathered data will be...

In this paper we introduce a new class of OR games: economic lot-sizing (ELS) games. There are a number of retailers that have a known demand for a fixed number of periods. To satisfy demand the retailers order products at the same manufacturer. By placing joint orders instead of individual...