The paper provides an analysis of the voting method known as delegable proxy voting, or liquid democracy. The analysis first positions liquid democracy within the theory of binary aggregation. It then focuses on two issues of the system: the occurrence of delegation cycles; and the effect of delegations on individual rationality when voting on logically interdependent propositions. It finally p...

In light of Elena Kagan's nomination to serve as an Associate Justice of the United States Supreme Court, this report analyzes then-Professor Kagan's views of executive power and the doctrine of separation of powers as laid most extensively out in her 2001 Harvard Law Review article Presidential Administration. This report will proceed as follows. First, it will briefly describe the constitutio...

Task delegation presents one of the business process security leitmotifs. It defines a mechanism that bridges the gap between both workflow and access control systems. There are two important issues relating to delegation, namely allowing task delegation to complete, and having a secure delegation within a workflow. Delegation completion and authorisation enforcement are specified under specifi...

Cyber–physical systems (CPSs) is a manufacturing infrastructure that requires high reliability real-time automatic control characteristics. It widely used in industrial fields such as production and transportation. An example future transportation network system controls information sensors actuators based on network. However, CPSs are susceptible to cyberattacks network-based interconnections ...

We analyze a principal-supervisor-two agent hierarchy with supervisory efforts, provide a characterization of the equilibrium of the game, and show which regime improves efficiency between the collusion-proof regime and the lateral collusion one, under the assumptions that the principal is less informed, and that the side-trade is costly. By coping with the trade-off between the value of inform...

In a recent editorial in the New York Times, David Brooks lamented the growing inability of states to address the world’s problems effectively: “The dispersion of power…means that more groups have effective veto power over collective action. In practice, this new pluralistic world has given rise to globosclerosis, an inability to solve problem after problem” (Brooks 2008). Pundits, policymakers...

Most power relationships between organizations and stakeholders are episodic circuits of power whereby resource dependence is exacerbated by prohibitive rules. Such relationships are usually constraining rather than empowering and generate resistance and reluctant compliance rather than co-operation and creativity. Clegg’s (1989) concept of facilitative circuits of power, however, suggests that...

Sometimes it is useful to be able to separate between the management of a set of resources, and the access to the resources themselves. Current accounts of delegation do not allow such distinctions to be easily made, however. We introduce a new model for delegation to address this issue. The approach is based on the idea of controlling the possible shapes of delegation chains. We use constraint...

Delegation is an important tool for authorization in large distributed environments. However, current delegation mechanisms used in emerging Grids have problems to allow for flexible and secure delegation. This paper presents a framework to realize restricted delegation using a specific attribute certificate with trust value in grid environments. The framework employs attribute certificates to ...

In existing delegation models, delegation security entirely depends on delegators and security administrators, for delegation constraint in these models is only a prerequisite condition. This paper proposes an Attribute-Based Delegation Model (ABDM) with an extended delegation constraint consisting of both delegation attribute expression (DAE) and delegation prerequisite condition (CR). In ABDM...