Buiter on European sovereign debt crisis.

The Financial Times sought the perspective of Citi Chief Economist Willem Buiter in its coverage of whether the European Central Bank (ECB) will step up its controversial bond purchase program to help settle the escalating Eurozone crisis. "The involvement of the ECB is likely to rise, despite its statements -- and probably wishes -- to the contrary," he told the paper (registration required).

Earlier this week, Buiter also shared his views on the potential for sovereign defaults in Europe as well as options for shoring up the debt of Ireland, Spain, Portugal and Greece in the Guardian UK.