Read more: "Greece in crisis: Saving a nation"
One of the big questions hanging over the Greek crisis is whether it should exit the eurozone, an expensive solution dubbed "Grexit". In theory this would see Greece reinstating its old currency, the drachma, to attract investment and restore prosperity. But would it stop the crisis spreading to other eurozone nations like Spain and Portugal?
Scientists who apply the laws of natural networks such as ecosystems to economic networks suspect not. The primary problem, they say, is the way the eurozone is built. Grexit will not change that.
"The euro might be the worst possible way to engineer a [stable] system," says George Sugihara of the Scripps Institution of Oceanography in La Jolla, California, a network theorist and former investments director at Deutsche Bank. The common currency increased members' interdependence, he says, yet each can still respond independently to their own ...
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