Cel The recent extensions of the European Union brought a priori measures of voting power (power measures or power indices) in the spotlight. Originating from game theory these measures serve as indicators of the voting powers of players in a given voting situation. However, a priori measures of voting power are no more than statistical expectations of power as a result of random voting and therefore power indices lack the game theoretical features attributed to them. We rebuild these game theoretical foundations by introducing strategic power indices: we expand the model by allowing players to reject particular coalitions and thereby possibly increase their power. We characterise strategic power indices and apply them to real-life voting situations, such as the European Union’s Council of Ministers. We discuss implications to values, in particular the Shapley value. Further, we extend these models to farsighted players, players with preferences, such as for games on convex geometries and for games on networks. We also consider a modification of strategic power indices where players can renegotiate blocked coalitions and in these negotiations different credits can be given to critical/pivotal players in the same coalition. Finally, we develop a model to calculate the “true” power of a winning coalition in a parliamentary voting situation, where the power of a particular coalition belongs to the interval [0,1] to reflect the margin by which it is winning/losing. Dziedzina nauki natural sciencesmathematicsapplied mathematicsgame theory Słowa kluczowe Economic theory Game theory Political sciences Program(-y) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Temat(-y) PEOPLE-2007-2-2.ERG - Marie Curie Action: "European Reintegration Grants" Zaproszenie do składania wniosków FP7-PEOPLE-ERG-2008 Zobacz inne projekty w ramach tego zaproszenia System finansowania MC-ERG - European Re-integration Grants (ERG) Koordynator OBUDAI EGYETEM Wkład UE € 9 000,00 Adres BECSI UT 96 B 1034 Budapest Węgry Zobacz na mapie Region Közép-Magyarország Budapest Budapest Rodzaj działalności Higher or Secondary Education Establishments Kontakt administracyjny András Medve (Dr.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych Uczestnicy (1) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko Budapesti Műszaki Főiskola Zakończenie uczestnictwa Węgry Wkład UE € 36 000,00 Adres Bécsi út 96/b 1034 BUDAPEST Zobacz na mapie Rodzaj działalności Higher or Secondary Education Establishments Kontakt administracyjny András Medve (Dr.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych
