Forecasting changes in stock prices is extremely challenging given that numerous factors cause these prices to fuctuate. The random walk hypothesis and efcient market hypothesis essentially state that it is not possible to systematically, reliably predict future stock prices or forecast changes...

Acyclic phase-type distributions form a versatile model, serving as approximations to many probability distributions in various circumstances. They exhibit special properties and characteristics that usually make their applications attractive. Compared to acyclic continuous phase-type (ACPH)...

Acyclic phase-type distributions form a versatile model, serving as approximations to many probability distributions in various circumstances. They exhibit special properties and characteristics that usually make their applications attractive. Compared to acyclic continuous phase-type (ACPH)...

Das Harmonisierte System zur Bezeichnung und Kodierung von Waren des internationalen Handels (HS) hat seit 1988 für eine Angleichung der weltweit verwendeten Nomenklaturen für statistische und zolltarifliche Zwecke gesorgt, da es in 207 Ländern und Wirtschaftsgebieten angewendet wird und...

Many patients have a choice of a provider for acute care, typically choosing between an Urgent Care facility (UC) or an Emergency Department of a hospital (ED). This choice is made by a patient who is generally not herself a trained medical professional. She is strategic but imperfectly informed...

New economic geography focuses on the impact of falling transport costs on the spatial distribution of activities. However, it disregards the role of technological innovations, which are central to modern economic growth, as well as the role of migration costs, which are a strong impediment to...