This document discusses various methods for evaluating the costs and benefits of health interventions, including cost-benefit analysis, cost-effectiveness analysis, and cost-utility analysis. It describes different types of costs, such as direct medical costs, direct non-medical costs, and indirect costs. It also discusses how to measure benefits, including quality-adjusted life years (QALYs) and willingness-to-pay approaches. Key metrics for comparing interventions include the incremental cost-effectiveness ratio (ICER) and the cost-utility ratio (CUR).