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A Microfounded Mechanism of Observed Substantial Inflation Persistence

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Author Info
Harashima, Taiji

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Abstract

Recently, it has been argued that trend inflation may be the solution to the puzzle of inflation persistence in the New Keynesian Phillips curve (NKPC). However, incorporating trend inflation into the NKPC raises another serious problem—it lacks a microfoundation. The paper presents a microfoundation for trend inflation, which indicates that trend inflation is a natural consequence of simultaneous optimization by the government and households. A purely forward-looking model is constructed based on the microfoundation presented. The model enables a unified explanation for various types of inflation. It also indicates that, if inflation is assumed to follow an autoregressive process without considering trend inflation, many measures of inflation persistence will spuriously indicate that inflation is intrinsically substantially persistent and has a backward-looking property.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 10668.

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Date of creation: 21 Sep 2008
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Handle: RePEc:pra:mprapa:10668

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Related research
Keywords: Inflation persistence; The New Keynesian Phillips curve; Central bank independence; Trend inflation; The fiscal theory of the price level;

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Find related papers by JEL classification:
E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization

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