Which of the following is a method for determining reasonable rate-setting methodology?

Direct negotiation with user groups is an effective method for determining reasonable rate-setting methodology as it allows for active participation from those directly affected by the rates, such as airlines, freight companies, and other airport users. This method fosters collaboration and transparency, facilitating a clearer understanding of the needs and concerns of various stakeholders. It ensures that the rates set reflect the operational realities and financial capabilities of the user groups, which can lead to a more balanced and fair approach to rate-setting.

In contrast, feedback from airport passengers may provide insights into customer satisfaction but may not directly influence the financial aspects of rate-setting. Solely relying on government recommendations could overlook the specific context and financial dynamics of individual airports. Using outdated historical valuations lacks relevance, as economic conditions and operational costs can change significantly over time, making such data less applicable for current rate-setting decisions.