This paper shows that the inability to use monetary policy for macroeconomic stabilization leaves a government more vulnerable to a rollover crisis. We study a sovereign default model with self-fulfilling rollover crises, foreign currency debt, and nominal rigidities. When the government lacks...

This paper argues, first, that it is inappropriate to presume that central banks will, in the absence of any tangible precommitment technology, inevitably behave in a `discretionary' fashion that implies an inflationary bias. Furthermore, there is no necessary tradeoff between `flexibility and...

This paper takes issue with two basic conclusions prevalent in the literature on central bank behavior. First, the paper argues that it is inappropriate to presume that central banks will, in the absence of any precommitment technology, necessarily behave in a 'discretionary' fashion that...

This paper develops the view that monetary policy operates within a set of basic constraints that limit the set of outcomes that it can achieve.These include constraints on aggregate supply behavior that determine how a given path of nominal income growth will be divided between inflation and...

We argue that the question of whether and when policy reform works should be investigated together with the political economy factors responsible for distortionary policies in the first place. These not only determine the initial distortions, but also often shape policy in the post-reform...

An independent central bank can manage its balance sheet and its capital so as to commit itself to a depreciation of its currency and an exchange-rate peg. This way, the central bank can implement the optimal escape from a liquidity trap, which involves a commitment to higher future inflation....

Changes in both the macroeconomy and in macroeconomics suggest that the IS-LM-AS model is no longer the best baseline model of short-run fluctuations for teaching and policy analysis. This paper presents an alternative model that replaces the assumption that the central bank targets the money...

This paper develops a New Keynesian model featuring financial intermediation, short and long term bonds, credit shocks, and scope for unconventional monetary policy. The log-linearized model reduces to four key equations - a Phillips curve, an IS equation, and policy rules for the short term...