[acifani]

What welfare are you talking about? Italy has been a net payer [0] in EU contributions from since I could remember

[0] https://www.cbs.nl/en-gb/news/2016/50/netherlands-largest-ne...

[Tsubasachan]

The biggest welfare is being in the same political Union as better functioning economies. I shudder to think how expensive it would be for Italy to raise money on the international bond market if it wasn't for the ECB.

[beerlord]

More than offset by the ability to control their own currency and interest rates. They could immediately print away their external debts, for example.