Central banks no longer set the short-term interest rates that they use for monetary policy purposes by manipulating the supply of banking system reserves, as in conventional economics textbooks; this process normally involves little or no variation in the supply of central bank liabilities. In...

The influence of monetary policy over interest rates, and via interest rates over nonfinancial economic activity, stems from the central bank's role as a monopolist over the supply of bank reserves. Several trends already visible in the financial markets of many countries today threaten to...