In response to Koole's criticisms of our cartel party argument, we sug
gest that the relationship between participation in an inter-party car
tel (a systemic characteristic) and the characteristics of the individ
ual parties participating in the cartel is strong enough to generate a
'cartel party' as a party type. While the boundaries between interest
organizations and the state have blurred, this is a generalization of
the blurring of boundaries between parties and the state to which we
referred, and only means that more of the traditional linkages between
society and the state are becoming problematic. Precursors of the car
tel party phenomenon can be traced to the 1950s or before, but in rece
nt years it has become increasingly typical rather than aberrational.
While there are no fully fledged cartel parties (as there never were f
ully fledged mass or catch-all parties), the type has developed suffic
iently as to justify the specification of an additional 'corner' in sp
ace, relative to which real-world cases can be anchored.