"I am happy to share Nicola Sturgeon’s sentiments. Her wishes for Scotland are appropriate, I think. But to achieve them equally appropriate policies have to be adopted and no country could achieve her aims without adopting its own currency, and choosing to pursue its own monetary and fiscal policy. The Growth Commission has instead chosen to give the government of a supposedly independent Scotland no greater economic power than the devolved administration already has in this area. Right now it manages a budget constrained by London and under the Growth Commission proposal that is exactly what it would still have." Professor Richard Murphy.
http://www.taxresearch.org.uk/Blog/2018/05/31/nicola-sturgeon-will-have-to-admit-the-growth-commission-called-the-currency-issue-incorrectly-if-indyref2-is-to-succeed/