Global current account imbalances were a major subject of concern in the years before the recent financial crisis. It is shown that the expected (negative) equilibrium relationship between net foreign assets and the trade balance that had held in the previous twenty years appeared to break down...

Theory predicts that a nation's stochastic intertemporal budget constraint is satisfied if net foreign assets (NFA) are integrated of any finite order, or if net exports (NX) and NFA satisfy an error-correction specification with a residual integrated of any finite order. We test these...