We study from both a theoretical and an empirical perspective how a network of military alliances and enmities affects … the intensity of a conflict. The model combines elements from network theory and from the politico-economic theory of … characterization of the Nash equilibrium of the fighting game, and of how the network structure affects individual and total fighting …

by a network of unpaid software developers. Using data from Sourceforge.net, the largest repository of Open Source … Software (OSS) projects and contributors on the Internet, we construct two related networks: A Project network and a … Contributor network. Knowledge spillovers may be closely related to the structure of such networks, since contributors who work on …

often also that consumers make the proper usage decisions. This paper studies investment and usage in a shared ATM network … whether to withdraw cash at ATMs or branches. We find that banks substantially underinvested in the shared ATM network and … with partial incompatibility. Furthermore, we find that consumer usage of the available ATM network is too low because of …

to a distribution network is essential to the ability to compete, we show that this is not the case. Instead, the access … owner of the network. …

change under different network configurations and information transmission technologies. In our model relations are the links …, and the value of the network lies in its ability to enforce cooperative agreements that could not be sustained if agents … had no access to other network members’ sanctioning power and information. We identify conditions for network stability …