into account the potential externalities networks produce. Once social ties are in place, these externalities shape the … norms are easily sustained in symmetric networks. By contrast, when an efficient interaction requires players to play …

One of the reasons why regulators are hesitant about permitting price competition in healthcare markets is that it may … admissions to Dutch hospitals, we find no evidence that increased exposure to price competition reduces quality measured by …

frequency, passenger connecting costs, airline endogenous hub location and route structure strategic competition. We find that …

networks are either complete or have the stararchitecture. Moreover, the process of network formation has powerful effects on …

It is widely recognized that the shape of networks influences both individual and aggregate behavior. This raises the … question which types of networks are likely to arise. Our paper fits into the literature that addresses this question. The … groups. In this paper we give a full characterization of the networks induced by a minimal curb set for any number of groups …