What economic principle measures the choice of one decision against another?

The economic principle that measures the choice of one decision against another is known as "opportunity cost." Opportunity cost refers to the value of the next best alternative that is forgone when a decision is made. It highlights the trade-offs involved in decision-making, emphasizing that choosing one option often means sacrificing the benefits of another. Understanding opportunity cost helps individuals and businesses make informed choices that align with their goals and resource allocation.