The recent weakness in asset markets in Asia shows that investors now believe Europe’s woes will put the region at risk. But whether this fear is justified depends on two possible scenarios – a breakup of the euro zone or a European recession.

Those who believe in the first scenario have reason to be worried. A euro zone breakup involving any of the major economies would have an impact worse than the one seen after the Lehman collapse. We would see a domino effect on sovereign debt defaults and foreign exchange markets would be plunged into chaos by the sudden disappearanceof the world’s second most important reserve currency.