This paper presents a simulation model to study the robustness of timetables of DSB S-tog a/s, the city rail of Copenhagen. Dealing with rush hour scenarios only, the simulation model investigates the effects of disturbances on the S-tog network. Several timetables are analyzed with respect to robustness. Some of these are used in operation and some are generated for the purpose of investigatin...

R groups influence product and brand evaluations, especially when the product is a publicly consumed luxury good. Marketers of such luxury goods need to carefully balance two important social forces: (1) the desire of leaders to distinguish themselves from followers and (2) the countervailing desire of followers to assimilate with leaders. In this paper, we examine the theoretical implications ...

The resource-based theory of the firm attributes superior firm performance to organizational resources that are valuable, rare, irreplaceable, and most readily reproduced. Aligned with this theory, the dissertation examines the widely expressed notion that knowledge management (KM) competencies form a critical organizational resource that contributes to firm performance. Specifically, this diss...

advised all employees that the Executive Branch would begin a transition of its information technology resources into open standards. The intent of the plan was the standardization of the IT infrastructure and the improvement of interoperability across agencies. The Executive Office later extended the open standards policy to electronic documents. In the quest to make documents accessible acros...

Online groups have become more popular in recent decades, in both research and practice. Many authors have proposed important outcomes of group membership, and some have even investigated some preliminary dynamics of these online groups. Unfortunately, no validated measure of online group identity exists, causing these researchers to employ measures with poor psychometric properties or concerni...

The present paper introduces some strategies used in teaching an Informatics course for non-IT first year university students. The strategies were developed during several years, using the main principles of flexible and blended learning. The methodology has been based on the results of experiments with students from social sciences, economics and technical faculties. Numerous tests were carrie...

We study the stability of voluntary cooperation in response to varying group growth rates. Using a laboratory public-good game, we construct a situation where increasing group size yields potential efficiency gains, but only with sustained cooperation. We then study the effect of exogenously varying growth rates on cooperation. Slow growth yields higher cooperation rates and welfare than fast g...