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...

While systemic risk—the risk of wholesale failure of banksand other financial institutions—is generally consideredto be the primary reason for supervision and regulation of thebanking industry, almost all regulatory rules treat such risk inisolation. In particular, they do not account for...