Abstract
This article outlines what is meant by a parliamentary form of government and analyzes how such regimes vary in the postwar advanced industrial democracies. A wide range of variables are discussed and measured annually. Factor analysis is used to produce eight different aspects of parliamentarianism. The first two of these yield a twodimensional analysis. Based on these two key factors, it is argued that there are three main types of parliamentary systems: (1) those of cabinet dominance; (2) those that are polarized with a central role for a fragmented parliament; and (3) those of cooperative policy-making diffusion with a working parliament. Generally, the first and third of these are polar opposite types, yet they each manifest greater cabinet durability than the cluster of polarized systems.
Get full access to this article
View all access options for this article.
