The financial crisis of 2007-09 highlighted the changing role of financial institutions and the growing importance of the "shadow banking system," which grew out of the securitization of assets and the integration of banking with capital market developments. This trend was most pronounced in the...

When the nominal interest rate reaches its zero lower bound, credibility is crucial for conducting forward guidance. We determine optimal policy in a New Keynesian model when the central bank has imperfect credibility and cannot set the nominal interest rate below zero. In our model, an...

As the financial crisis has receded, the Federal Reserve has scaled back its extraordinary provision of liquidity. Eventually, the Fed will remove all remaining monetary stimulus by raising the federal funds rate and shrinking its balance sheet. The timing of such renormalizations depends...

We consider the fiscal multiplier and spillover in an environment in which two countries are caught simultaneously in a liquidity trap. Using an optimizing two-country sticky price model, we show that the fiscal multiplier and spillover are contrary to those predicted in textbook economics. For...

An "easing" of monetary policy can be characterized by an expansion of bank reserves and a persistent decline in the federal funds rate that, with a considerable lag, induces a pickup in employment, output, and prices. This article presents empirical evidence consistent with this depiction of...

In an environment of low inflation, the Federal Reserve faces the risk that it has not provided enough monetary stimulus even when it has pushed the short-term nominal interest rate to its lower bound of zero. Assuming the nominal Treasury-bill rate has been lowered to zero, this paper considers...

Despite the fact that efforts to identify it empirically have largely been futile, the liquidity effect plays a central role in conventional monetary theory and policy. Recently, however, an increasing volume of empirical work [Christiano and Eichenbaum (1992a,b), Christiano, Eichenbaum and...

There is widespread agreement that a surprise increase in an economy's money supply drives the nominal interest rate down and economic activity up, at least in the short run. This is understood as reflecting the dominance of the liquidity effect of a money shock over an opposing force, the...

In an environment of low inflation, the Federal Reserve faces the risk that it has not provided enough monetary stimulus even when it has pushed the short-term nominal interest rate to its lower bound of zero. Assuming the nominal Treasury-bill rate has been lowered to zero, this paper considers...

Ignoring the existence of the zero bound on nominal interest rates one considerably understates the value of monetary commitment in New Keynesian models. A stochastic forward-looking model with an occasionally binding lower bound, calibrated to the U.S. economy, suggests that low values for the...