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The Overlooked Assumption Behind the New Keynesian Phillips Curve

Listed author(s):
  • Belanger, Gilles

The New Keynesian Phillips Curve rests on an assumption not mentioned in the literature. Specifically, firms that are price constrained align their production along the demand curve, ignoring the effects of marginal cost on supply. This paper investigates what happens when the relationship between marginal cost and pricing conforms instead to standard microeconomic theory. It shows that the New Keynesian Phillips Curve is invalid and prices are not procyclical, but acyclical in this case. Therefore, if the assumption in question is necessary to the model, it should be acknowledged for the sake of transparency.

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File URL: https://mpra.ub.uni-muenchen.de/55629/1/MPRA_paper_55629.pdf
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File URL: https://mpra.ub.uni-muenchen.de/57813/3/MPRA_paper_57813.pdf
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 55629.

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Date of creation: 28 Apr 2014
Handle: RePEc:pra:mprapa:55629
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  1. Lawless, Martina & Whelan, Karl T., 2011. "Understanding the dynamics of labor shares and inflation," Journal of Macroeconomics, Elsevier, vol. 33(2), pages 121-136, June.
  2. Fuhrer, Jeffrey C, 1997. "The (Un)Importance of Forward-Looking Behavior in Price Specifications," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 29(3), pages 338-350, August.
  3. Jeremy Rudd & Karl Whelan, 2007. "Modeling Inflation Dynamics: A Critical Review of Recent Research," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(s1), pages 155-170, 02.
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  5. Frank Smets & Kai Christoffel & Günter Coenen & Roberto Motto & Massimo Rostagno, 2010. "DSGE models and their use at the ECB," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 1(1), pages 51-65, March.
  6. Lawrence J. Christiano & Martin Eichenbaum & Charles L. Evans, 2005. "Nominal Rigidities and the Dynamic Effects of a Shock to Monetary Policy," Journal of Political Economy, University of Chicago Press, vol. 113(1), pages 1-45, February.
  7. Christopher A. Sims, 2012. "Statistical Modeling of Monetary Policy and Its Effects," American Economic Review, American Economic Association, vol. 102(4), pages 1187-1205, June.
  8. Arturo Estrella & Jeffrey C. Fuhrer, 2002. "Dynamic Inconsistencies: Counterfactual Implications of a Class of Rational-Expectations Models," American Economic Review, American Economic Association, vol. 92(4), pages 1013-1028, September.
  9. Michael Dotsey, 2013. "DSGE models and their use in monetary policy," Business Review, Federal Reserve Bank of Philadelphia, issue Q2, pages 10-16.
  10. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  11. Rudd, Jeremy & Whelan, Karl, 2005. "Does Labor's Share Drive Inflation?," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 37(2), pages 297-312, April.
  12. Gali, Jordi & Gertler, Mark, 1999. "Inflation dynamics: A structural econometric analysis," Journal of Monetary Economics, Elsevier, vol. 44(2), pages 195-222, October.
  13. Roberts, John M, 1995. "New Keynesian Economics and the Phillips Curve," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(4), pages 975-984, November.
  14. Yun, Tack, 1996. "Nominal price rigidity, money supply endogeneity, and business cycles," Journal of Monetary Economics, Elsevier, vol. 37(2-3), pages 345-370, April.
  15. Frank Smets & Raf Wouters, 2003. "An Estimated Dynamic Stochastic General Equilibrium Model of the Euro Area," Journal of the European Economic Association, MIT Press, vol. 1(5), pages 1123-1175, 09.
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