On July 1, Paul Krugman wrote in The New York Times:
What would it really take to save Europe’s single currency? The answer, almost surely, would have to involve both large purchases of government bonds by the central bank, and a declared willingness by that central bank to accept a somewhat higher rate of inflation. Even with these policies, much of Europe would face the prospect of years of very high unemployment. But at least there would be a visible route to recovery. Yet it’s really, really hard to see how such a policy shift could come about.
On July 24 Martin, Feinstein wrote in the Financial Times:
A lower value of the euro would reduce the prices of eurozone exports and raise the cost of imports, reducing or eliminating the current account deficits of the peripheral European countries, since about half of their trade is with countries outside the eurozone. The weaker euro would also boost Germany’s net exports, raise German wages and prices, and reduce the trade imbalance within the eurozone. The increase in peripheral country net exports would also raise their gross domestic product and so reverse their recessions that were caused by higher taxes and cuts in government spending. That would make it politically easier to achieve the needed fiscal consolidations. And shifting from recession to growth would raise business incomes and employment, reducing the volume of bad loans and mortgage defaults now hurting the banks.
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Perhaps a combination of the two would do the trick.