Krugman on Bubbles and Secular Stagnation

Paul Krugman has some interesting thoughts on the possibility that the U.S. economy might have a serious problem with secular stagnation that has been remedied in large part over the last two decades by bubble generated demand. This is old hat to some of us, but it's great to see Krugman pursuing this line of thought.

There are two points worth adding on the topic. One important component of demand that has been big-time in the negative category in the last 15 years is net exports. This repr...