ABSTRACT
This chapter discusses the meso-level theoretical model which argues that the success of outsiders depends mainly on the policy network type existing in the sector in which they attempt to bring about policy change. If there is a high degree of cohesion among network members, interest groups may attract significant support from the other members, in particular state actors. Members of policy communities are highly integrated in governmental policy making whereas members of issue networks are only loosely integrated. Interaction can take a variety of forms, ranging from bargaining and negotiation in policy communities to consultations in issue networks. Classical pluralists operate with one dimension of power. Dahl's definition represents the most commonly expressed view on power within classical pluralism. Over time, the institutional factors in a policy community become more important in explaining policy choices than the pattern of resource exchange because members increasingly handle policy problems by referring to principles and procedures.
