Please describe how you would conduct an appropriate economic evaluation for a mental health service or programme of your choice. You may choose (a) a service or programme that has never been subjected to an economic evaluation, or (b) revisit a service or programme with an existing economic evaluation component, which you think can be improved in its design. This can be a further development of ideas generated from any of group discussions if you wish. Explain the background, objectives, methods (including outcome and cost measurement), and potential policy implications in your local context.