Well, Llywydd, I certainly agree that both city deals and a north Wales growth deal has to be more than just an argument about the sum of money. It has to be about a wider agenda of driving collaboration, speaking with a single voice on key ambitions. And with that may go devolution of some of the sort of responsibilities that Mark Isherwood just outlined. It will be for the proponents of the deal to make that case. Of course, I am aware of TIF and the way that it operates elsewhere. I met the Society of Welsh Treasurers in local government on Friday of last week and had a useful discussion with them about a range of these issues, including the potential for a shared-gain approach to growth in business rate receipts, where it is possible that local authorities coming together in these city and growth deals can demonstrate that there is an additional flow of income as a result of their combined efforts.