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Towards a New Keynesian Theory of the Price Level

Listed author(s):
  • John Barrdear

    ()

    (Bank of England
    Centre for Macroeconomics (CFM)
    Economics Department London School of Economics (LSE))

Modifying the standard New-Keynesian model to replace firms’ full information and sticky prices with flexible prices and dispersed information, and imposing mild and plausible restrictions on the monetary authority’s decision rule, produces the striking results that (i) there exists a unique and globally stable steady-state rate of inflation, despite the possibility of a lower bound on nominal interest rates; and (ii) in the vicinity of steady-state, the price level is determinate (and not just the rate of inflation), despite the central bank targeting inflation. The specification of firms’ signal extraction problem under dispersed information removes the need to make use of Blanchard-Kahn conditions to solve the model, thereby removing the need to adhere to the Taylor principle and consequently circumventing the critique of Cochrane (2011). The model admits a determinate, stable solution with no role for sunspot shocks when the monetary authority responds by less than one-for-one to changes in expected inflation, including under an interest rate peg. An extension to include incomplete information on the part of the central bank permits the consideration of (rational) errors of judgement on the part of policymakers and provides a theoretical basis for inertial policymaking without interest rate smoothing, in support of Rudebusch (2002, 2006).

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File URL: http://www.centreformacroeconomics.ac.uk/Discussion-Papers/2015/CFMDP2015-09-Paper.pdf
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Paper provided by Centre for Macroeconomics (CFM) in its series Discussion Papers with number 1509.

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Length: 55 pages
Date of creation: May 2015
Handle: RePEc:cfm:wpaper:1509
Contact details of provider: Web page: http://www.centreformacroeconomics.ac.uk/

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  1. Peter J. Klenow & Oleksiy Kryvtsov, 2008. "State-Dependent or Time-Dependent Pricing: Does it Matter for Recent U.S. Inflation?," The Quarterly Journal of Economics, Oxford University Press, vol. 123(3), pages 863-904.
  2. Creel, Jérôme & Hubert, Paul, 2015. "Has Inflation Targeting Changed The Conduct Of Monetary Policy?," Macroeconomic Dynamics, Cambridge University Press, vol. 19(01), pages 1-21, January.
  3. Olivier Coibion & Yuriy Gorodnichenko, 2012. "Why Are Target Interest Rate Changes So Persistent?," American Economic Journal: Macroeconomics, American Economic Association, vol. 4(4), pages 126-162, October.
  4. Leonardo Melosi, 2014. "Estimating Models with Dispersed Information," American Economic Journal: Macroeconomics, American Economic Association, vol. 6(1), pages 1-31, January.
  5. Angeletos, George-Marios & La’O, Jennifer, 2009. "Incomplete information, higher-order beliefs and price inertia," Journal of Monetary Economics, Elsevier, vol. 56(S), pages 19-37.
  6. Woodford, Michael, 1994. "Monetary Policy and Price Level Determinacy in a Cash-in-Advance Economy," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 4(3), pages 345-380.
  7. Guido Lorenzoni, 2009. "A Theory of Demand Shocks," American Economic Review, American Economic Association, vol. 99(5), pages 2050-2084, December.
  8. Jerome Creel & Paul Hubert, 2008. "Has the Adoption of Inflation Targeting Represented a Regime Switch? Empirical evidence from Canada, Sweden and the UK," Documents de Travail de l'OFCE 2008-25, Observatoire Francais des Conjonctures Economiques (OFCE).
  9. James D. Hamilton & Seth Pruitt & Scott C. Borger, 2009. "The market-perceived monetary policy rule," International Finance Discussion Papers 982, Board of Governors of the Federal Reserve System (U.S.).
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