The 3-Equation New Keynesian Model: A Graphical Exposition

Working Paper: CEPR ID: DP4588

Authors: Wendy Carlin; David Soskice

Abstract: We develop a graphical 3-equation New Keynesian model for macroeconomic analysis to replace the traditional IS-LM-AS model. The new graphical IS-PC-MR model is a simple version of the one commonly used in central banks and captures the forward-looking thinking engaged in by the policy-maker. We show how it can be modified to include a forward-looking IS curve and how it relates to current debates in monetary macroeconomics, including the New Keynesian Phillips Curve and the Sticky Information Phillips Curve models.

Keywords: monetary policy rules; new keynesian macroeconomics; new keynesian phillips curve; sticky information phillips curve; taylor rules

JEL Codes: A22; A23; E52


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Changes in monetary policy (E52)Output (Y10)
Changes in monetary policy (E52)Inflation (E31)
Forward-looking IS curve (E43)Current economic outcomes (E66)
Central bank's interest rate decisions (E52)Deviations in inflation from target (E31)
Central bank's interest rate decisions (E52)Deviations in output from equilibrium (D59)
Central bank's optimization behavior (E52)Inflation persistence (E31)
Central bank's optimization behavior (E52)Output fluctuations (E39)

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