This paper proposes a unified framework that integrates the traditional index-based approach and the competing non-cooperative approach to power analysis. It rests on a quantifiable notion of ex post power as the (counter-factual) sensitivity of the expected or observed outcome to individual...

This article replies to the claim that preference-based power indices are impossible and that preferences should be ignored when assessing actors’ influence in different interactions (Braham and Holler [2005] ‘The Impossibility of a Preference-based Power Index’, Journal of...

In the paper by Matthias Sutter a discrepancy between his results and earlier results on fair allocation of voting weights in the EU Council was found. In this paper, we explain the source of this discrepancy.

In this paper we argue that spatial voting games and power index models are not necessarily exclusive ways to analyse EU decision-making. We find that the two main criticisms pointed out by scholars of spatial voting games, namely that power indices do not take into account preferences or the...