unemployment, together with measures of firm performance. We find that strong social ties (parents) are an important determinant …

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. …

against our data. We find that team size affects the impact of the incentive scheme upon performance. Moreover, while the …

In this paper firm level data are used to test whether competition affects productivity performance in three transition … pressure has a positive impact on firm performance in Hungary and Slovenia, but not in Romania, while in Romenia short …-run competitive pressure has a positive impact on performance. The paper also finds evidence that ownership matters. Traditional firms …

bookmaker data. We find that, after the head-coach has been replaced, teams perform better than before. However, the performance … replacement of head-coaches does not improve team performance. …