I think there has been a challenging learning curve over a very long period of time. I suppose you could almost see with that transition the development of the finance function within government and the agenda of professionalization we've had in the U.K. over quite a long period of time to ensure we have people with the right professional expertise.
I would also say that both for the business of government and in terms of costing proposals, this is not simply the work of accountants. In reality, many of these things are cross-disciplinary, requiring economic analysis, a lot of economists, statisticians, operational researchers, and so on. I think there is certainly an upscaling process that has gone on over time.
In terms of parliamentarians and upscaling there, I suppose one of the more recent innovations in the U.K. is the development of the independent fiscal forecaster. Also, we have a very powerful audit institution in the form of the National Audit Office. To some extent, parliamentarians will seek to do the analysis for themselves, versus relying on informed judgments that come from these independent institutions that are hopefully well resourced and have a significant amount of technical capability to be able to provide comment and challenge to the proposals.