A system's security must be understood with respect to the capabilities and behaviors of an adversary Eve. It is often assumed in security analysis that Eve acts as maliciously as possible. From an economic perspective, Eve tries to maximize her utility in a game with other participants. The...

We introduce a two-stage, multiple-round voting procedure where the thresholds needed for approval require a qualified majority and vary with the proposal on the table. We apply such a procedure to instances of public-good provision where the citizens' valuations can take two values and are...

In a standard TU-game it is assumed that every subset of the player set can form a coalition and earn its worth. One of the first models where restrictions in cooperation are considered is the one of games with coalition structure. In such games the player set is partitioned into unions and...