Well done Antonio! i think this is a fantastic start to begin an analysis of Italy...
I know I would LOVE a political Geographic write-up... i'm sure someone here could help with that if they had the knowledge... hint hint, we'd all love it i'm sure. I'm not that familiar either and anyone can do a wiki-based write up if we were desperate.
The italian electoral system is just a mess; isn't this the third system they put in place in the last 10-20 years?
... ok i will admit it too, i love Vendola (politically and in italy i might be tempted to literally)