This paper presents a simple model of airline schedule competition that circumvents the complexities of the spatial approach used in earlier papers. Consumers choose between two duopoly carriers, each of which has evenly spaced flights, by comparing the combinations of fare and expected schedule...

This paper introduces the dynamical framework which combines product and process innovations. The model contributes to the theoretical literature on innovations in two ways. First, it permits for the simultaneous dynamics of both types of innovations which is rarely considered in the literature....

This paper analyzes informative advertising in a duopoly market with differentiated products when consumer search is costless. If consumers are fully rational, exposure to a single advertisement is sufficient for them to obtain complete market information. In this case, firms undersupply...