This paper assesses the sustainability of global imbalances by testing for the presence of unit roots in the current account positions (measured in relation to GDP) of the United States, China, Japan, Germany and the oil-exporting countries using a methodology that allows for structural breaks...

The global crisis has left many G20 countries with an unenviable legacy of lower potential output and high government indebtedness. Global imbalances, which had narrowed during the recession, are now beginning to widen again, as the recovery takes hold. Structural reform will be needed not only...