This paper analyses the determinants of peoples’ decision to purchase public transport season tickets. Based on the Deutschlandticket, it focuses on identifying primary customer groups, the role of public transport irregularities such as delays and cancellations, and behavioural inertia of repetitive purchase decisions. It builds on a panel dataset covering survey answers and GPS tracking data from ...
Competition authorities increasingly rely on economic screening tools to identify markets where firms deviate from competitive norms. Traditional screening methods assume that collusion occurs through secret agreements. However, recent research highlights that firms can use public announcements to coordinate decisions, reducing competition while avoiding detection. We propose a novel approach to screening ...
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Wegen des Iran-Kriegs wächst die Sorge, dass es zu Engpässen bei der Kerosin-Versorgung kommt. Dazu eine Einschätzung von Claudia Kemfert, Leiterin der Abteilung Energie, Verkehr, Umwelt im DIW Berlin:
