Several parliamentary governance structures based upon a directly elected premier are
analyzed through their effectivity functions. lt is shown that only collegial governance …

Effectivity functions are formalized descriptions of the power structure in a society; it assigns
to each coalition of individuals a family of subsets of the set of all outcomes in society. These …

Une fonction d'effectivité représente la distribution de pouvoir aux coalitions dans une
organisation. Cette thèse aborde différentes questions en rapport avec la théorie de la …

We introduce a description of the power structure which is inherent in a strategic game form
using the concept of an interaction sheaf. The latter assigns to each open set of outcomes a …

Game forms are designed to capture all salient features of games except payoff determining
components. Game forms are equivalent when they generate identical families of games, a …

Nous définissons les ensembles du marchandage au sens de Mas-Colell et de Zhou dans
les fonctions d'effectivité. Une fonction d'effectivité est marchandage stable si son ensemble …

Every game form and effectivity function (EF) generates a family of characteristic functions
(CFs) via feasible utility function profiles. We investigate the extent this family characterizes …