We show that a two-part tariff licensing contract is always optimal to the insider patentee in spatial models irrespective of the size of the innovation or any pre-innovation cost asymmetries. The result provides a simple justification of the prevalence of two-part tariff licensing contracts in...

In many product markets, impact of network externality plays an important role to affect the overall quality of a product. However, the degree or the strength of network externality is assumed as a parameter in most of the literature. We propose a model of vertical product differentiation with...

We explore whether the nature of piracy or the counterfeiting activity and the competition between the copyright holder and the pirate(s) matter in a given regime of Intellectual Property Right (IPR) protection. Generally, the nature of piracy can be of two types, commercial and end-user; and...

We show that a two-part tariff licensing contract is always optimal to the insider patentee in spatial models irrespective of the size of the innovation or any pre-innovation cost asymmetries. The result provides a simple justification of the prevalence of two-part tariff licensing contracts in...

We analyze the capacity choice of firms under demand uncertainty in a mixed duopoly market consisting of one private firm and one public firm. We define a two-stage game where firms choose capacity in the first stage without knowing which state of Nature is going to be realized, and output in...

We consider a game of endogenous timing of sequential choice of capacity and quantity with observable delay in a mixed duopoly and a private duopoly. In mixed duopoly, we find that a simultaneous play at the capacity stage or at the quantity stage can never be supported as subgame perfect Nash...