Well, Dirprwy Lywydd, let me try and find some common ground with Mr Hamilton because, like him, I agree that growing the Welsh tax base is a very important ambition for the Welsh Government. The only difference is in the best way to do that. He would do it by reducing the rate of taxation on high earners in Wales, in the hope that we would attract some people to come to live in Wales on that basis. I think there are many preferable reasons why people would want to come and live in Wales, not simply because it's cheap for them to do so. And the Welsh Governance Centre report on growing the Welsh tax base set out a series of other ways in which that could be achieved; for example, by greater graduate retention.

So, while I share the ambition behind his question, which is to make sure that we grow the tax base here in Wales, I think there are preferable ways to doing so from the one that he prefers, and where I think the evidence in favour of those alternative measures is stronger.