This special issue offers an up-to-date overview of the democratization of candidate selection, while giving attention to causes and cases from both past and present. The focus is on the consequences of internal democratization for the overall functioning of political parties. The contributions show that there are many forms of democratizing candidate selection. These differences mainly concern the inclusiveness of the selectorate that controls the candidate selection process and the degree of centralization of the selection methods, of which the role and composition of the selectorate are the most vital and defining criteria. The types of consequences and their impact on the functioning of parties are not univocal because there are different degrees of democratization. The empirical evidence presented by the contributions shows that moderate forms of democratization can have beneficial effects on party organizations - such as higher levels of membership participation - but that this effect is not certain. Radical forms, on the other hand, are more likely to distort party cohesiveness, and consequently weaken the quality of representative democracy.
Pennings et al. (Tue,) studied this question.