Pub. date: 2011 | Online Pub. Date: October 04, 2011 | DOI: 10.4135/9781412994163 | Print ISBN: 9781412959636 | Online ISBN: 9781412994163| Publisher:SAGE Publications, Inc.About this encyclopedia
A veto player is an individual or collective actor who possesses veto power in a political process and behaves strategically. Particular conceptions of the basic concept have to specify, among other things, what the relevant process is, who the veto players are, and what motivates them. The most influential conception of veto players has been developed by George Tsebelis (2002) in his veto player theory. That model has been elaborated in a number of different ways by subsequent scholars. Tsebelis relies on the concept of the veto player to unify the comparative analysis of political systems. One part of this unification is conceptual . Tsebelis argues that traditional institutional dichotomies such as between unicameral and bicameral parliaments or between presidential and parliamentary systems of government can to a significant extent be replaced by analyzing political systems and situations as particular veto player configurations. But veto player theory also aims at ...