Thank you.
I would agree with what Dr. Russell said. I think you could use a variety of approaches, starting with whatever data, whatever information you already have. I think that is the most logical way to proceed.
If you were to go to your treasury, say, or any other office and ask them to do some analysis for you, again, the easiest thing for them is existing software, existing methods, existing data that they start to work from. That's what I would encourage, first of all, to make it practical and as simple as possible for them to proceed.
The second thing I would encourage is that different types of analyses or approaches are appropriate for different types of expenditures areas, and I think that's okay. There will always be good ways to improve upon existing work that has been done. Again, I think Dr. Russell's remarks are really quite good and I would echo them, that you start with what you have, you do what you can, and you try to improve as you move along.
As to analyses that are done, people might criticize them and say, well, they could have been done better. And that's great, because then other people will try to improve those.
That's how I would proceed, quite frankly.