Mr. Robert Watt:

When we are deciding on whether to develop or build infrastructure, we need to assess whether that represents value for money and whether the benefits over the future lifetime of the project will exceed the costs. That is a cost-benefit analysis. We also do the public service benchmark. When we are deciding which way to procure it, the NDFA undertakes an analysis which looks at the costs and benefits of a public private partnership, PPP, type of approach compared to the traditionally procured approach. Various different tests are undertaken at different-----