Which principle states that larger groups have more power in decision-making?

The principle that larger groups have more power in decision-making is majority rule. This concept asserts that decisions are made based on the preferences of the majority of participants in a democratic process. In the context of governance and elections, majority rule serves as a fundamental principle that ensures that the outcomes reflect the will of the greater number of constituents, thereby legitimizing the authority of a decision made by a group when more than half agree on the course of action.

Majority rule emphasizes the supremacy of the collective decision of the larger group, signifying that the views of the minority, while still acknowledged, do not carry the same weight as those of the majority. This principle is foundational in democratic systems, representing a clear mechanism for achieving consensus or progression on various issues. In contrast, terms like minority rights and equal opportunity focus on protecting the interests of smaller or individual groups, and universal suffrage relates to the right of all adults to vote regardless of their background, rather than decision-making power based on group size.