Purpose It is commonly observed in trainings that all trainees do not get satisfied with the performance of the trainer. The usual way to increase the satisfaction of trainees is a stress on improving task communication of the trainer. It is based on the assumption that effective task...

In this paper we claim that modeling financial markets based on probability theory is a severe systematic mistake that led to the global financial crisis. We argue that the crisis was not just the result of risk managers using outdated financial data; we think that the employed efficiency...