Federal Reserve has defined limits of its capabilities

John Ryding, RDQ Economics LLC's chief economist told that Fed's action is dealing with the results of crisis rather than causes. In his opinion easing borrowing costs not only demonstrate central banks' power to shock global markets but also depict their limited ability to tackle debt crisis. Ryding, former BoE economist suggested that stabilization of debt situation requires ECB bond purchases; however the bank so far has rejected this option.