There is vigorous debate over the ability of the current antitrust enforcement regime in the United States to protect against potential reductions in competition caused by large technology companies. Some commentators have argued that current antitrust rules and processes cannot address...

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 develop a model of Ramp;D competition between an incumbent and a potential entrant with network externalities and durable goods. We show that the threat of entry eliminates the commitment problem that an incumbent may face in its Ramp;D decision due to the goods' durability. Moreover, a...

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 examines the decision to introduce new products by durable goods producers. Conventional wisdom suggests durable goods producers introduce new products to kill-off used products. However, used units may not compete with new units if initial price can capture the present value of all...

I investigate a simple model of advance-purchase contracts as a mode of financing costly projects. An entrepreneur has to meet some capital requirement in order to start production and sell the related good to a limited number of potential buyers who are privately informed about their...

I investigate a simple model of advance-purchase contracts as a mode of financing costly projects. The analysis can easily be reinterpreted as a model of the monopolistic provision of excludable public goods under private information. An entrepreneur has to meet some capital requirement in order...