Today I am in Melbourne (my home town) presenting a workshop on skills development for the new green jobs economy which is a joint Victorian Government/Brotherhood of St Laurence show. But that is not what I am writing about here. Regular readers of billy blog will know that when I talk about budget deficits I typically stress two points: (a) that the Government is not financially constrained and therefore all the hoopla about debt and future tax burdens are just a waste of time. But just because the Government can buy whatever is for sale by crediting relevant bank accounts doesn’t mean they should not place limits on the size of the deficit; and so (b) given the federal deficit “finances” private saving, it should therefore be aim to “fill” the spending gap left by the private desire to save. If the Government does that then it can maintain full employment and price stability and move towards a more equitable society. So it is of importance that we have some idea of the size of this spending (or output) gap.