The issue focused attention around the Commonwealth Heads of Government Meeting, held in Cardiff this week.Leaders agreed that Scotland should retain control over taxation but Wales should retain responsibility for finances and borrowing powers.BBC Wales correspondent Dominic Cavendish says ministers agreed there should be less duplication between Wales and Scotland but acknowledged there could still be disputes over taxation and borrowing powers.Scotland also demanded greater autonomy over inheritance tax but ministers insisted no compensation should be offered for inheritance losses from inheritance tax reliefs.'Room for manoeuvre'Nicola Sturgeon