Final answer:
The belief that many groups compete for access to decision-makers is associated with the concept of pluralism in political science, suggesting a diverse representation of interests in democracy.
Step-by-step explanation:
A person who believes many groups healthily compete for access to decision-makers can be associated with the concept of pluralism in political science. This perspective contends that such competition among diverse interests is beneficial for democracy and fosters representative governance. Pluralists like David Truman posit that people naturally form groups which then compete to influence policymakers, enabling a diverse range of interests to be heard and considered. Robert Dahl, another supporter of pluralism, argues that this competition allows for all 'active and legitimate groups' to make themselves known in political processes.
However, there is also an acknowledgment of the dominance of certain interests such as businesses and the wealthy, highlighting the potential for imbalances in representation. Elite critiques suggest these advantaged groups are overrepresented due to their resources which include the ability to employ lobbyists and make financial contributions to politicians. Neopluralist scholars recognize that while some interests, due to their resources, are in a privileged position, they do not always get what they want as their influence is conditioned by factors like public opinion and the mobilization of opposing interests.