For passengers to reach the final destination of the trip it is often necessary to make use of the transport services provided by several firms. When these transport services follow in a natural transport chain they are characterized as complementarities and the firms providing the services can,...

A theoretical model is adopted in order to discuss optimal fare and optimal quality of supply schemes for a transport operator. The analysis shows how fare and quality of supply are related to travel distance and to the transport operator's emphasis on profit versus consumer surplus. Under...