capita number of connections that groups have with the rest of the community. "Two-dimensional" networks?like real …-world networks in Peruvian villages?are sufficiently expansive to allow very good risk-sharing. (ii) In second- best arrangements …

are achieved through deeper financial integration and expanded informal networks. Active networks are more geographically …

I develop a general theory of monopoly pricing of networks. Platforms use insulating tariffs to avoid coordination …

We study cascades of failures in a network of interdependent financial organizations: how discontinuous changes in … increases further, organizations are better insured against one another's failures. Integration also faces trade-offs: increased … dependence on other organizations versus less sensitivity to own investments. Finally, we illustrate the model with data on …

greatest for co-located pairs. Thus, the advent of Bitnet – and likely of subsequent networks – seems to have increased the …