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He's taught at Cambridge, University of Sydney and the University of Athens but now, Yanis Varoufakis has a new role, after being appointed Greece's new finance minister following the victory of the Syriza party.
From 2004 to 2007, Varoufakis was an economic advisor to George Papendreou, who went on to serve as Prime Minister of Greece from 2009 to 2011.
The self-proclaimed "accidental economist" celebrated his party's win by declaring the "time for crisis-denial, retribution and finger-pointing is over".
"Today, the people of Greece gave a vote of confidence to hope. They used the ballot box, in this splendid celebration of democracy, to put an end to a self-reinforcing crisis that produces indignity in Greece and feeds Europe’s darkest forces," the 53-year-old wrote in a blog post.
"Greek democracy today chose to stop going gently into the night. Greek democracy resolved to rage against the dying of the light. Fresh from receiving our democratic mandate, we call upon the people of Europe and, indeed, the world over, to join us in a realm of shared, sustainable prosperity."
In a recent interview with ABC's Phillip Adams, Varoufakis says there's no doubt he has been heavily influenced by Karl Marx and John Maynard Keynes but what is his take on the Greek crisis?