At the risk of dating myself, I cannot think of four words that better describe the “joy” of summer travel. Not knowing where you are, on a seemingly endless journey in the back of an air-condition-free station wagon, was a form of torture few today can comprehend. Jay Powell, the current Chairman of the Federal Reserve, is hearing this question a lot lately. There are two challenges to answering this question. First, unlike most global entities, the USA does not…