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 possibility that a country’s external current account may adjust nonlinearly to shocks is attracting increasing attention in the empirical literature. To shed further light on this issue in the context of emerging-market economies, this paper uses Brazilian data to estimate the...