George Tsebelis, “Veto points and institutional analysis”, Governance 13 (2000), pp. 441-474

Summary: Veto players theory can explain: the difference b/w majoritarian and supermajoritarian institutions; the importance of absenteeism, or of political marginalization; the importance of agenda control and referendums; the reasons for government stability (parliamentary systems) and regime stability (presidential systems); the reasons for independence of bureaucracies, and judicial independence.
Important Insight: the reason the veto players theory increases significantly our understanding of politics is not only that it explains policy stability, but also that from policy stability a series of other important characteristics of a political system follow. The role of the judiciary, the role of bureaucracies, and government or regime stability are all connected with the VPs of a political system.