Author
Jordi Galí
Other affiliations: Bank of Spain, National Bank of Belgium, New York University ...read more
Bio: Jordi Galí is an academic researcher from Pompeu Fabra University. The author has contributed to research in topics: Monetary policy & Inflation. The author has an hindex of 79, co-authored 222 publications receiving 49111 citations. Previous affiliations of Jordi Galí include Bank of Spain & National Bank of Belgium.
Papers published on a yearly basis
Papers
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TL;DR: In this article, a review of the recent literature on monetary policy rules is presented, and the authors exposit the monetary policy design problem within a simple baseline theoretical framework and consider the implications of adding various real word complications.
Abstract: This paper reviews the recent literature on monetary policy rules. To organize the discussion, we exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real word complications. We concentrate on developing results that are robust across a reasonable variety of competing macroeconomic frameworks. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making credible commitments to fight inflation and consider the implications of frictions such as imperfect information and model uncertainty. Finally, we assess how proposed simple rules, such as the Taylor rule, square with the principles for optimal policy that we describe. We use this same metric to evaluate the recent course of U.S. monetary policy.
4,540 citations
TL;DR: In contrast to conventional wisdom, this paper showed that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level, and also considered the implications of frictions such as imperfect information.
Abstract: The paper reviews the recent literature on monetary policy rules. We exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real world complications. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making a credible commitment to fight inflation. In contrast to conventional wisdom, we show that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level. We also consider the implications of frictions such as imperfect information.
3,990 citations
TL;DR: In this article, the authors estimate a forward-looking monetary policy reaction function for the postwar United States economy, before and after Volcker's appointment as Fed Chairman in 1979, and compare some of the implications of the estimated rules for the equilibrium properties of ineation and output, using a simple macroeconomic model.
Abstract: We estimate a forward-looking monetary policy reaction function for the postwar United States economy, before and after Volcker’s appointment as Fed Chairman in 1979. Our results point to substantial differences in the estimated rule across periods. In particular, interest rate policy in the Volcker-Greenspan period appears to have been much more sensitive to changes in expected ineation than in the pre-Volcker period. We then compare some of the implications of the estimated rules for the equilibrium properties of ineation and output, using a simple macroeconomic model, and show that the Volcker-Greenspan rule is stabilizing.
3,914 citations
Posted Content•
TL;DR: In this paper, the authors developed and estimated a structural model of inflation that allows for a fraction of firms that use a backward looking rule to set prices, and they concluded that the New Keynesian Phillips curve provides a good first approximation to the dynamics of inflation.
Abstract: We develop and estimate a structural model of inflation that allows for a fraction of firms that use a backward looking rule to set prices. The model nests the purely forward looking New Keynesian Phillips curve as a particular case. We use measures of marginal cost as the relevant determinant of inflation, as the theory suggests, instead of an ad-hoc output gap. Real marginal costs are a significant and quantitatively important determinant of inflation. Backward looking price setting, while statistically significant, is not quantitatively important. Thus, we conclude that the New Keynesian Phillips curve provides a good first approximation to the dynamics of inflation.
2,644 citations
TL;DR: In this paper, the authors developed and estimated a structural model of inflation that allows for a fraction of firms that use a backward-looking rule to set prices, and the model nests the purely forward-looking New Keynesian Phillips curve as a particular case.
2,514 citations
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TL;DR: In this article, a review of the recent literature on monetary policy rules is presented, and the authors exposit the monetary policy design problem within a simple baseline theoretical framework and consider the implications of adding various real word complications.
Abstract: This paper reviews the recent literature on monetary policy rules. To organize the discussion, we exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real word complications. We concentrate on developing results that are robust across a reasonable variety of competing macroeconomic frameworks. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making credible commitments to fight inflation and consider the implications of frictions such as imperfect information and model uncertainty. Finally, we assess how proposed simple rules, such as the Taylor rule, square with the principles for optimal policy that we describe. We use this same metric to evaluate the recent course of U.S. monetary policy.
4,540 citations
TL;DR: In this article, the authors present a model embodying moderate amounts of nominal rigidities that accounts for the observed inertia in inflation and persistence in output, and the key features of their model are those that prevent a sharp rise in marginal costs after an expansionary shock to monetary policy.
Abstract: We present a model embodying moderate amounts of nominal rigidities that accounts for the observed inertia in inflation and persistence in output. The key features of our model are those that prevent a sharp rise in marginal costs after an expansionary shock to monetary policy. Of these features, the most important are staggered wage contracts that have an average duration of three quarters and variable capital utilization.
4,250 citations
TL;DR: In contrast to conventional wisdom, this paper showed that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level, and also considered the implications of frictions such as imperfect information.
Abstract: The paper reviews the recent literature on monetary policy rules. We exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real world complications. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making a credible commitment to fight inflation. In contrast to conventional wisdom, we show that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level. We also consider the implications of frictions such as imperfect information.
3,990 citations
TL;DR: In this article, the authors estimate a forward-looking monetary policy reaction function for the postwar United States economy, before and after Volcker's appointment as Fed Chairman in 1979, and compare some of the implications of the estimated rules for the equilibrium properties of ineation and output, using a simple macroeconomic model.
Abstract: We estimate a forward-looking monetary policy reaction function for the postwar United States economy, before and after Volcker’s appointment as Fed Chairman in 1979. Our results point to substantial differences in the estimated rule across periods. In particular, interest rate policy in the Volcker-Greenspan period appears to have been much more sensitive to changes in expected ineation than in the pre-Volcker period. We then compare some of the implications of the estimated rules for the equilibrium properties of ineation and output, using a simple macroeconomic model, and show that the Volcker-Greenspan rule is stabilizing.
3,914 citations
Posted Content•
TL;DR: Weak instruments arise when the instruments in linear instrumental variables (IV) regression are weakly correlated with the included endogenous variables as mentioned in this paper, and weak instruments correspond to weak identification of some or all of the unknown parameters.
Abstract: Weak instruments arise when the instruments in linear instrumental variables (IV) regression are weakly correlated with the included endogenous variables. In generalized method of moments (GMM), more generally, weak instruments correspond to weak identification of some or all of the unknown parameters. Weak identification leads to GMM statistics with nonnormal distributions, even in large samples, so that conventional IV or GMM inferences are misleading. Fortunately, various procedures are now available for detecting and handling weak instruments in the linear IV model and, to a lesser degree, in nonlinear GMM.
3,378 citations