Left-wing and fiercely anti-austerity, Syriza's victory at the polls in Greece yesterday has brought fears of instability and a Greek exit from the euro back to the fore, but economists suggest the apparent storm may turn out to be largely bluster.

Alexis Tsipras's Syriza party stormed to a comfortable majority of 149 seats at elections over the weekend, but fell two seats short of an absolute majority. Tsipras was sworn in as prime minister today – the first ever to take a civil rather than