Introduction: Prophylactic vaccinations play a significant role in health care. As a relatively cost-effective preventive measure they can help to avert transmissible diseases and thus protect not only the vaccinated individuals themselves but also those who have not been vaccinated. In order to...

Hypothetical bias is the discrepancy between stated preferences and actual choices. As such, it is one of the key issues regarding the use of hypothetical survey methods and therefore highly relevant for economists in understanding human behavior and refining policy interventions. Hypothetical...