A Greek default and traumatic ejection from the euro moved a step closer last night after eurozone finance ministers cancelled a crucial meeting, accusing Athens of failing to flesh out austerity cuts. The escalating brinkmanship came as fresh data showed that Greece's economy contracted by 6.8pc last year and at an accelerating 7pc rate in the last quarter, far worse than expected by the European Union (EU), the European Central Bank (ECB) and the International Monetary Fund (IMF) "troika". The country appears to be in a self-feeding downward spiral that is playing havoc with budget targets, leaving Greece with a...