Until this year, Citigroup was the only $1 trillion banking organization in the U.S. Now, there are two more—Bank of America has merged with FleetBoston, and J.P. Morgan Chase is about to complete its merger with Bank One. These megamergers are notable not only for their size but also for the...

Business cycle volatility has fallen in the United States during the past two decades. Trehan (2005) explains some of the possible mechanisms behind our now more stable economy. Some researchers have argued, for instance, that businesses manage inventory better today than in the past, or that...