Introduction

Measuring Party Performance

Electoral Success

Breadth of Activities

Cohesion

Measuring Party Organization

Complexity

Centralization

Involvement

Factionalism

Organizational Effects on Each Aspect of Performance

1. The greater the complexity, the greater the electoral success.
2. The less the centralization, the greater the electoral success.
3. The less the involvement, the greater the electoral success.
4. The greater the complexity, centralization, and involvement, the broader the scope of party activities.
5. Legislative cohesion is increased by complexity, centralization, and involvement--but decreased by factionalism.
6. Legislative cohesion in effective legislatures is increased by parliamentarism, complexity, centralization, and involvement--but decreased by factionalism.

Organizational Effects on Overall Party Performance

Doctrinaire Parties

Mobilizing Parties

Summary and Conclusions

Footnotes