Twins No More by Krugman

Back in the Reagan years two unprecedented things began happening to the US economy. For the first time ever, we began running large peacetime budget deficits; and for the first time ever we began running large trade deficits. In a famous analysis, Martin Feldstein pronounced them “twin deficits”, linking the external deficit to the budget deficit, a proposition that made sense at the time: the budget deficit was helping to drive up interest rates, and high rates led to an overvalued dollar. 

It’s occurred to me recently that much discussion of deficits these days implicitly assumes that something similar applies in today’s world — that by running budget deficits we’re indebting ourselves, as a nation, to foreigners (especially China). So it’s worth pointing out that this isn’t remotely true.

Triffin dilemma?