The Pessimists and the Optimists disagree whether the US external deficits and the associated buildup of US net foreign liabilities are problems that require urgent attention. A warning signal should be that the debt ratio deviates significantly from the optimal ratio. The optimal debt ratio or...

Das Leistungsbilanzdefizit der Vereinigten Staaten ist in seiner gegenwärtigen Höhe von 6 ½ Prozent des Bruttoinlandsprodukts dauerhaft nicht tragfähig. Verschiedene weltwirtschaftliche Entwicklungen wirken allerdings darauf hin, dass sich das Defizit langfristig auf ein tragfähiges Niveau...

The empirical analysis in this paper supports the view that the status of the US dollar as a “safe haven” is closely related to the development of the US current account and the US net foreign debt. Safe haven purchases of the US dollar can still be recorded in the 1989-2006 period despite...

In assessing Alexander Swoboda's great influence on economics, two themes stand out: the determinants of global inflation, particularly in the 1970s, and the choice of an exchange rate regime consistent with domestic monetary and fiscal policies. Although seemingly narrowly focused on China, our...

Since 2004, China has been backed into a situation where the renminbi is expected to go ever higher against the dollar, and this one-way bet has led to a loss of domestic monetary control. Combined with a more general flight from the U.S. dollar, the resulting monetary explosion in China...

A narrowing of the U.S. current account deficit through exchange rate movements is likely to entail a substantial depreciation of the dollar, as stressed in research by Obstfeld and Rogoff. We assess how the adjustment is affected by the high degree of financial integration in the world economy....

This paper develops a tractable two-country model with life-cycle structure to investigate analytically and quantitatively three potential determinants of the U.S. external imbalances in the last three decades: productivity growth, demographic factors, and fiscal policy. The results suggest that...

Three current account imbalances - one very large deficit (the United States) and two surpluses (Japan and the Euro area) - are subjected to a minimalist structural interpretation. Though simple, this interpretation enables us to assess how much of each of the imbalances require a real exchange...

This paper examines to what extent the build-up of global imbalances since the mid-1990s can be explained in a purely real open-economy DSGE model in which agents' perceptions of long-run growth are based on filtering observed changes in productivity. We show that long-run growth estimates based...