I am typing some of this on the train from Brighton back to London, after a day of speaking events in Brighton, where the British Labour Party conference is currently being held. I spoke at two events: (a) the GIMMS event on MMT and the Green New Deal and a video will be available soon; and (b) at an event alongside British Labour MP Chris Williamson, where were talked about how an Modern Monetary Theory (MMT) understanding can enhance the progressive policy cause and advance a transformation towards a ‘socialist’ (whatever that might be) state. It was great to see everyone at the events. The second event was attended by many people involved in the Labour Party itself and I hope that being exposed to new ideas will activate further grassroots resistance to the neoliberal system that undermines our material prosperity. So this two-part series is a reflection on the state of economic policy thinking within British Labour in the context of the paradigm shift that is going on now, around the world, in macroeconomic policy thinking. As I noted in – Part 1 – we are now seeing economists and policy makers, lining up, to tell us that a reliance on monetary policy has run its course and a new era of fiscal policy dominance is the only viable way ahead. That means that New Keynesian economics is over. That means that fiscal credibility rules that reflect an adherence to neoliberal constructs will need to be abandoned. And it seems that British Labour are lagging behind these major shifts that have been going on in economic policy thinking. Only Modern Monetary Theory (MMT) offers a consistent and credible path for Labour to make the shift into this era.