Sinking sovereign Will Europe let Greece drown?

Why are investors unfazed by the prospect of Greece running out of cash or exiting the euro?

Here we go once again. Greece is heading for yet another showdown with its European paymasters this week. Another deadline, more crunch talks, more arguments about the unfairness of imposing austerity on an already shattered economy and the ever-looming threat of the country abruptly leaving the eurozone.

The still-new prime minister of Greece, Alexis Tsipras, hasn’t backed down in his attempts to ease the terms of the economic reforms Europe has demanded. Europe is ...