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Languages : en
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Author:
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Languages : en
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Author: Stéphane Dées
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Category : Global analysis (Mathematics)
Languages : en
Pages : 29
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Author: Stephane Dees
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Category :
Languages : en
Pages : 29
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Category :
Languages : en
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"Phillips curves are central to discussions of inflation dynamics and monetary policy. New Keynesian Phillips curves describe how past inflation, expected future inflation, and a measure of real marginal cost or an output gap drive the current inflation rate. This paper studies the (potential) weak identification of these curves under generalized methods of moments (GMM) and traces this syndrome to a lack of persistence in either exogenous variables or shocks. The authors employ analytic methods to understand the identification problem in several statistical environments: under strict exogeneity, in a vector autoregression, and in the canonical three-equation, New Keynesian model. Given U.S., U.K., and Canadian data, they revisit the empirical evidence and construct tests and confidence intervals based on exact and pivotal Anderson-Rubin statistics that are robust to weak identification. These tests find little evidence of forward-looking inflation dynamics"--Federal Reserve Bank of Atlanta web site.
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Languages : en
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Author: Luca Guerrieri
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Category : Capital market
Languages : en
Pages : 54
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We develop and estimate an open economy New Keynesian Phillips curve (NKPC) in which variable demand elasticities give rise to changes in desired markups in response to changes in competitive pressure from abroad. A parametric restriction on our specification yields the standard NKPC, in which the elasticity is constant, and there is no role for foreign competition to influence domestic inflation. By comparing the unrestricted and restricted specifications, we provide evidence that foreign competition plays an important role in accounting for the behavior of inflation in the traded goods sector. Our estimates suggest that foreign competition has lowered domestic goods inflation about 1 percentage point over the 2000-2006 period. Our results also provide evidence against demand curves with a constant elasticity in the context of models of monopolistic competition.
Author: Jean-Marie Dufour
Publisher: Montréal : CIRANO
ISBN: 9782893825168
Category : Inflation (Finance)
Languages : en
Pages : 23
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Author: Jinho Choi
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Category :
Languages : en
Pages : 31
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This article proposes a new identification strategy and a new estimation method for the hybrid New Keynesian Phillips curve (NKPC). Unlike the predominant Generalized Method of Moments (GMM) approach, which leads to weak identification of the NKPC with U.S. postwar data, our non-parametric method exploits nonlinear variation in inflation dynamics and provides supporting evidence of point-identification. This article shows that identification of the NKPC is characterized by two conditional moment restrictions. This insight leads to a quantitative method to assess identification in the NKPC. For estimation, the article proposes a closed-form Generalized Band Spectrum Estimator (GBSE) that effectively uses information from the conditional moments, accounts for nonlinear variation, and permits a focus on short-run dynamics. Applying the GBSE to U.S postwar data, we find a significant coefficient of marginal cost and that the forward-looking component and the inflation inertia are both equally quantitatively important in explaining the short-run inflation dynamics, substantially reducing sampling uncertainty relative to existing GMM estimates.
Author: Marika Karanassou
Publisher:
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Category : Keynesian economics
Languages : en
Pages :
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"The conventional wisdom that inflation and unemployment are unrelated in the long-run implies that these phenomena can be analysed by separate branches of economics. The macro literature tries to explain inflation dynamics and estimates the NAIRU. The labour macro literature tries to explain unemployment dynamics and determine the real economic factors that drive the natural rate of unemployment. We show that the orthodox view that the New Keynesian Phillips curve is vertical in the long-run and that it cannot generate substantial inflation persistence relies on the implausible assumption of a zero interest rate. In the light of these results, we argue that a holistic framework is needed to jointly explain the evolution of inflation and unemployment"--Forschungsinstitut zur Zukunft der Arbeit web site.
Author: Vincent Belinga
Publisher:
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Category : Monetary policy
Languages : en
Pages : 24
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The Phillips curve is central to discussions of inflation dynamics and monetary policy. In particular, the New Keynesian Phillips Curve is a valuable tool to describe how past inflation, expected future inflation, and real marginal cost or an output gap drive the current inflation rate. However, economists have had difficulty applying the New Keynesian Phillips Curve to real-world data due to empirical limitations. This paper overcomes these limitations by using an identification-robust estimation method called the Tikhonov Jackknife instrumental variables estimator. Data from Morocco are used to examine the ability of the New Keynesian Phillips Curve to explain Moroccan inflation dynamics. The analysis finds that by adding more information to the hybrid version of the New Keynesian Phillips Curve model by increasing the number of moment conditions, the inflation dynamics in Morocco can be well-described by the New Keynesian Phillips Curve. This framework suggests that the New Keynesian Phillips Curve would be a strong candidate for short-run inflation forecasting.
