We revisit the endogenous choice of price or quantity made by two retailers in a vertical structure with a monopolistic manufacturer under network externalities when the retailers involve in centralized Nash bargaining with the two-part tariff contracts. When comparing integration to separation...

We investigate a differentiated mixed duopoly in which private and public firms can choose to strategically set prices or quantities when unions are present. For the case of a unionised mixed duopoly, there exists a dominant strategy only for the public firm that chooses Bertrand competition...