Consider two profit-maximizing service firms in the presence of congestion-sensitive customers. Firms set their prices and compete to capture market share. We compare cases where the firms can invest either independently (competition) or jointly (co-opetition) in congestion-reduction (CR)...

We introduce a supply chain network equilibrium model with differentiated products, in which firms compete on product quantities and quality. We then extend the model to include a strict quota or tariff. We establish the equivalence between the model with a strict quota and that with a tariff,...