Existing empirical evidence is inconclusive whether professional investors show moresophisticated behavior than individual investors. Therefore, we study two importantgroups of professional investors and compare them to laymen by way of a survey coveringabout 500 investors. We find that some...

ZUSAMMENFASSUNGDer Apothekenmarkt unterliegt in vielen europäischen Ländern nach wie vor einer starkenstaatlichen Regulierung. Sie besteht – je nach Land – in der Eigentümerregulierung, derRegulierung des Geschäftsbetriebes, der Öffnungszeiten, der Personalausstattung, derPreisbildung,...

This paper addresses operation models for workforce planning for check-in systems at airports. We characterize different tasks of the hierarchical workforce planning problem with time-dependent demand. A binary linear programming formulation is developed for the fortnightly tour scheduling...

This paper analyzes the Steiner–Weber-Problem with piecewise linear or piecewise constant transportation costs. These non-differentiable cost functions are analyzed using different one-step and dynamic linearization methods, which are based on approximations via average and marginal costs. An...

The capacity of a runway system represents a bottleneck at many international airports. The current practice at airports is to land approaching aircraft on a first-come, first-served basis. An active rescheduling of aircraft landing times increases runway capacity or reduces delays. The problem...

This paper treats the problem of setting the inventory level and optimizing the buffer allocation of closed-loop flow lines operating under the constant-work-in-process (CONWIP) protocol. We solve a very large but simple linear program that models an entire simulation run of a closed-loop flow...