Which of the following is NOT an underlying assumption of interest group theory?

The underlying assumptions of interest group theory revolve around the dynamics of how groups influence politics and policy decisions. Each of the assumptions states a fundamental belief about the process of policymaking.

The correct response indicates that the idea of opinion elites being key to the process of accessing policymakers is not a fundamental assumption of interest group theory. Interest group theory primarily focuses on the competition and interaction among various interest groups, and how these groups advocate for their particular interests. It emphasizes that numerous groups advocate for distinct causes and vie for the attention and influence on policymakers.

The notion that opinion elites are essential for accessing policymakers suggests a more hierarchical structure in which a select few hold disproportionate influence. However, interest group theory posits that power and influence do not rest solely with elites but are rather dispersed among various competing groups with diverse interests.

Other assumptions such as groups competing for power and influence and policy outcomes resulting from group interests are central tenets of the theory. Finally, the assumption that public opinion holds no impact on policymaking contradicts the theory's view; public sentiment can and often does influence the effectiveness and strategies of interest groups, thereby shaping the policymaking landscape.