We consider duopolists innovating and producing a good subject to network externalities, so that the reservation price of a consumer increases with aggregate consumption. The post-innovation network consists of two compatible sub-networks, with increased network valuation of the new product....

We consider duopolists innovating and producing a good subject to network externalities, so that the reservation price of a consumer increases with aggregate consumption. The post-innovation network consists of two compatible sub-networks, with increased network valuation of the new product....

We consider duopolists innovating and producing a good that is subject to network externalities, so that the reservation price for a consumer increases with aggregate consumption. The post-innovation network consists of two compatible sub-networks, with increased network valuation of the new...

This paper presents a mechanism inducing costly research and innovation in the absence of intellectual property rights. The mechanism relies on forward contracting between the provider of the innovation and firms or individuals that benefit from the pecuniary effects of the innovation, rather...

We consider cities which can increase the income of landowners or of capital owners by improving the quality of public services. The improvement can come from innovation or from imitation. We find that when cities aim to benefit landowners, too many cities innovate; but too few cities innovate...