We extend the basic (representative-household) New Keynesian [NK] model ofthe monetary transmission mechanism to allow for a spread between the interestrate available to savers and borrowers, that can vary for either exogenous orendogenous reasons. We nd that the mere existence of a positive...

The mid-1980s began a period that might, in retrospect, be seen as the golden age of monetary policy. Worldwide inflation rates, which had come down from the high levels reached in the 1970s, were at the lowest level seen in a long time. In the real economy, low and stable inflation went along...