Here is one bit:
The combination of low inflation and low growth means that it is the evolution of nominal GDP that really matters now. Nominal GDP is non inflation corrected GDP (or GDP at current rather than constant prices). If inflation remains low or even becomes negative, then nominal GDP will hardly increase and may even continue to contract (as has happened in Japan). The result is bound to be that the gross government debt to GDP ratio rises above the 135.6% it hit in March.
One of the arguments frequently advanced about how this dynamic could be turned around would be for Italy to run a “large” primary budget surplus. Now the emphasis here is on large since the country has in fact run a primary surplus (income – expenditure before paying debt interest) since the early 1990s, but that hasn’t stopped the weight of the debt climbing and climbing.
The full post is here, scary throughout.