Could Matteo Renzi's exit lead to an Italian bank rescue?

With eurozone authorities willing to bend their own rules, a solution could be at hand - though it would fix few long-term issues

Investors' ability to look on the bright side on political turmoil is remarkable. In the case of Italy, the departure of Matteo Renzi, the market-friendly centre-left prime minister, was followed quickly by the thought that the crisis in the country's banking system may, counterintuitively, become easier to address.

That wasn't last week's theory, of course. Back then, Renzi's survival was seen as critical to encouraging private sector investors to cough up billions of euros of new capital to refinance the likes of Banca Monte dei Paschi di Siena and UniCredit.

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