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The New Keynesian Phillips Curve of Rational Expectations: A Serial Correlation Extension

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  • Chengsi Zhang
  • Joel Clovis

Abstract

This paper evaluates the empirical validity of the New Keynesian Phillips Curve (NKPC) model of rational expectations. We employ an instrumental variable (IV) projection method to approximate inflation expectations, and show that the inference based on this approach can differ significantly from the one based on rational expectations. More importantly, using an IV test for serial correlation in the GMM context, we find that the error term in the stylized NKPC model is significantly serially correlated. To compensate for the serial correlation problem, we propose an extended framework which can be easily rationalized in terms of sticky price setting of backward-looking firms. Empirical results show that further lags of inflation are needed in the hybrid specification of the NKPC in order to rule out serial correlation in the Euler equation.

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  • Chengsi Zhang & Joel Clovis, 2010. "The New Keynesian Phillips Curve of Rational Expectations: A Serial Correlation Extension," Journal of Applied Economics, Taylor & Francis Journals, vol. 13(1), pages 159-179, May.
    • Handle: RePEc:taf:recsxx:v:13:y:2010:i:1:p:159-179
    DOI: 10.1016/S1514-0326(10)60008-6
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    Cited by:

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    2. Kiefer, David, 2015. "Targets and lags in a two-equation model of US stabilization," Economic Modelling, Elsevier, vol. 44(C), pages 18-24.
    3. Chengsi Zhang & Denise R. Osborn & Dong Heon Kim, 2009. "Observed Inflation Forecasts and the New Keynesian Phillips Curve," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 71(3), pages 375-398, June.
    4. Malikane, Christopher, 2014. "A new Keynesian triangle Phillips curve," Economic Modelling, Elsevier, vol. 43(C), pages 247-255.
    5. Sophocles Mavroeidis & Mikkel Plagborg-Møller & James H. Stock, 2014. "Empirical Evidence on Inflation Expectations in the New Keynesian Phillips Curve," Journal of Economic Literature, American Economic Association, vol. 52(1), pages 124-188, March.
    6. Lasha Arevadze & Tamta Sopromadze & Giorgi Tsutskiridze & Shalva Mkhatrishvili, 2020. "Identifying the Phillips Curve in Georgia," NBG Working Papers 01/2020, National Bank of Georgia.
    7. Regis Barnichon & Geert Mesters, 2020. "Identifying Modern Macro Equations with Old Shocks," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 135(4), pages 2255-2298.
    8. Lasha Arevadze & Tamta Sopromadze & Giorgi Tsutskiridze & Shalva Mkhatrishvili, 2020. "Identifying the Phillips Curve in Georgia," NBG Working Papers 01/2020, National Bank of Georgia.
    9. Zorica Mladenović & Aleksandra Nojković, 2012. "Inflation Persistence in Central and Southeastern Europe: Evidence from Univariate and Structural Time Series Approaches," Panoeconomicus, Savez ekonomista Vojvodine, Novi Sad, Serbia, vol. 59(2), pages 235-266, May.
    10. Christopher Malikane & Tshepo Mokoka, 2014. "The new Keynesian Phillips curve: endogeneity and misspecification," Applied Economics, Taylor & Francis Journals, vol. 46(25), pages 3082-3089, September.
    11. Kristina Matuzeviciute & Mindaugas Butkus & Akvile Karaliute, 2017. "Do Technological Innovations Affect Unemployment? Some Empirical Evidence from European Countries," Economies, MDPI, vol. 5(4), pages 1-19, December.
    12. Oinonen, Sami & Vilmi, Lauri, 2021. "Analysing euro area inflation outlook with the Phillips curve," BoF Economics Review 5/2021, Bank of Finland.
    13. Malikane, Christopher, 2012. "The microfoundations of the Keynesian wage-price spiral," MPRA Paper 42921, University Library of Munich, Germany, revised 29 Nov 2012.
    14. David Kiefer, 2016. "Policy effectiveness is limited by a flat Phillips curve, stabilization as practiced in Europe and the US," Working Paper Series, Department of Economics, University of Utah 2016_3, University of Utah, Department of Economics.

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    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E37 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Forecasting and Simulation: Models and Applications
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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