This paper addresses the existence of Nash equilibria in one-way flow or directed network models in a number of different settings. In these models players form costly links with other players and obtain resources from them through the directed path connecting them. We find that heterogeneity in...

We consider a multimarket framework where a set of firms compete on two interrelated oligopolistic markets. Prior to competing in these markets, firms can spy on others in order to increase the quality of their product. We characterize the equilibrium espionage networks and networks that...

Social networks, be it on the internet or in real life, facilitate information flows. We model this by giving agents incentives to link with others and receive information through those links. In many networks agents will value confirmation of the information they receive from others. Our paper...

We examine the role of an environmental tax on R&D collaboration networks between firms in the context of developing cleaner production processes. First, we show that three types of innovation networks can emerge in equilibrium. Then, we examine the relationship between the environmental tax and...

We introduce a price oligopoly model with informed and uninformed consumers, thus creating a new channel of influence for collaborative R&D. Firms can establish pair-wise collaborative research links with other firms to lower production costs. Informed consumers buy from the lowest cost firms...

This paper introduces a partner heterogeneity assumption in the one-way flow model of Bala and Goyal (2000, [1]). Our goal consists in the characterization of strict Nash networks with regard to the set of resources obtained by players. We use the notion of condensation network which allows us...