The Festschrift in honor of Prof. Dr. Peter Keller, president of the International Association of Scientific Experts in Tourism (AIEST) since 1994, represents a wide range of tourism research as well as the current state of the ongoing debates in tourism as a scientific research field. The aim...

Practicing sports as well as the organization of sports events generate considerable positive external effects which cause an inefficiently low provision of private funds and thus justify public interventions in the sports market. For instance, organising competitions and providing sports...