New security technologies are never neutral in their impact; it is known that they can alter power relations and economic dependencies among stakeholders. This article examines the attempt to introduce the Resource Public Key Infrastructure (RPKI) to the Internet to help improve routing...

We study the group stability of collective decision making when society is organized according to a non directed graph, and groups' payoff possibilities are given by a partition function. We focus on the stability properties of hierarchical organizations, formally described by minimally...

The Internet has evolved from a “hierarchy” — in which interconnection was achieved by having Internet Service Providers (ISPs) purchase transit services from top-level backbones and top-level backbone providers engage in direct settlement-free peering — to a “mesh” in which peering...

We study internal organization of a rm that comprises a CEO and two division managers. The two key ingredients of our model are externalities among divisions' projects that may require coordination, and effort incentives for the CEO and the two division managers. Depending on how the decision...

We analyze decision-making in a simple model of the judicial hierarchy. We assume that trial court judges are more concerned with ex post efficiency with respect to the individuals involved in the cases at hand, and less concerned with ex ante efficiency with respect to the precedents...

In almost all subfields of political science in the last third of the twentieth century, it was claimed that we are witnessing a transformation of political order from hierarchies to networks. This paper traces institutional change during the twentieth century by examining structures and modes...