approached these questions by applying predictions and assumptions of evolutionary game theory to human cooperation within … behavior. Nevertheless, cooperation is ubiquitous in nature. Cooperative behavior is costly and provides benefits to other … others. Thus, cooperation cannot be an evolutionary stable strategy without special mechanisms that can reduce the chance of …

ist es das erste Modell, das diese Identifikation im Falle von direkten Netzwerkeffekten ermöglicht. Gleichzeitig ist es … best of our knowledge, this is the first model that facilitates the identification in the case of direct network effects …

Public debate about energy relations between the EU and Russia is distorted. These distortions present considerable … demand. Diverse interests inside the EU prevent the definition of a coherent and respected energy policy. Russia, for its … instead of damaging it. Stable cooperation would need the acceptance that the partner may pursue his own goals, which might be …