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Is Numérairology the Future of Monetary Economics?Unbundling numéraire and medium of exchange through a virtual currency and a shadow exchange rate

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W.H. Buiter

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Abstract

The paper discusses some fundamental problems in monetary economics associated with thedetermination and role of the numéraire. The issues are introduced by formalising a proposal,attributed to Eisler, to remove the zero lower bound on nominal interest rates by unbundling thenuméraire and medium of exchange/means of payment functions of money. The monetary authoritiesmanage the exchange rate between the numéraire ('sterling') and the means of payment ('drachma').The short nominal interest rate on sterling bonds can then be used to target stability for the sterlingprice level. The paper puts question marks behind two key bits of conventional wisdom incontemporary monetary economics. The first is the assumption that the monetary authorities defineand determine the numéraire used in private transactions. The second is the proposition that pricestability in terms of that numéraire is the appropriate objective of monetary policy. The paper alsodiscusses the merits of the next step following the decoupling of the numéraire from the currency:doing away with currency altogether - the cashless economy. Because the unit of account plays such a central role in New-Keynesian models with nominalrigidities, monetary economics needs to devote more attention to numérairology - the study of theindividual and collective choice processes that govern the adoption of a unit of account and its role in economic behaviour.

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Paper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number dp0776.

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Date of creation: Jan 2007
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Handle: RePEc:cep:cepdps:dp0776

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Related research
Keywords: Zero lower bound cashless economy price level determinacy optimal inflation

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Find related papers by JEL classification:
E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
E6 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook

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  1. Willem H. Buiter, 2003. "Helicopter Money: Irredeemable Fiat Money and the Liquidity Trap," NBER Working Papers 10163, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  2. John B. Taylor, 1980. "Aggregate Dynamics and Staggered Contracts," NBER Reprints 0126, National Bureau of Economic Research, Inc.
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  3. Lucas, Robert Jr., 1982. "Interest rates and currency prices in a two-country world," Journal of Monetary Economics, Elsevier, vol. 10(3), pages 335-359. [Downloadable!] (restricted)
  4. Willem H. Buiter, 2002. "The Fiscal Theory Of The Price Level: A Critique," Economic Journal, Royal Economic Society, vol. 112(481), pages 459-480, July. [Downloadable!] (restricted)
  5. Bennett T. McCallum, 2001. "Monetary Policy Analysis in Models Without Money," NBER Working Papers 8174, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  6. Buiter, Willem H & Sibert, Anne, 2004. "Deflationary Bubbles," CEPR Discussion Papers 4528, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  7. Caplin, Andrew & Leahy, John, 1991. "State-Dependent Pricing and the Dynamics of Money and Output," The Quarterly Journal of Economics, MIT Press, vol. 106(3), pages 683-708, August. [Downloadable!] (restricted)
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  8. Woodford, Michael, 2001. "Fiscal Requirements for Price Stability," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(3), pages 669-728, August.
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  9. Willem H. Buiter, 2005. "New Developments in Monetary Economics: Two ghosts, Two Eccentricities, a Fallacy, a Mirage and a Mythos," Economic Journal, Royal Economic Society, vol. 115(502), pages C1-C31, 03. [Downloadable!] (restricted)
  10. Caplin, Andrew S & Spulber, Daniel F, 1987. "Menu Costs and the Neutrality of Money," The Quarterly Journal of Economics, MIT Press, vol. 102(4), pages 703-25, November. [Downloadable!] (restricted)
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  11. Mikhail Golosov & Robert E. Lucas, 2003. "Menu Costs and Phillips Curves," NBER Working Papers 10187, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  12. Willem H. Buiter, 2006. "The elusive welfare economics of price stability as a monetary policy objective - why New Keynesian central bankers should validate core inflation," Working Paper Series 609, European Central Bank. [Downloadable!]
  13. Buiter, Willem H & Jewitt, Ian, 1981. "Staggered Wage Setting with Real Wage Relativities: Variations on a Theme of Taylor," The Manchester School of Economic & Social Studies, Blackwell Publishing, vol. 49(3), pages 211-28, September.
  14. Brock, William A, 1974. "Money and Growth: The Case of Long Run Perfect Foresight," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 15(3), pages 750-77, October. [Downloadable!] (restricted)
  15. Willem H. Buiter & Marcus H. Miller, 1986. "Costs and Benefits of an Anti-Inflationary Policy: Questions and Issues," NBER Working Papers 1252, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  16. Marvin Goodfriend, 2000. "Overcoming the zero bound on interest rate policy," Conference Series ; [Proceedings], Federal Reserve Bank of Boston, pages 1007-1057.
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  17. Richard Clarida & Jordi Gali & Mark Gertler, 2001. "Optimal Monetary Policy in Open versus Closed Economies: An Integrated Approach," American Economic Review, American Economic Association, vol. 91(2), pages 248-252, May. [Downloadable!] (restricted)
  18. Willem H. Buiter & Nikolaos Panigirtzoglou, 2003. "Overcoming the zero bound on nominal interest rates with negative interest on currency: gesell's solution," Economic Journal, Royal Economic Society, vol. 113(490), pages 723-746, October. [Downloadable!] (restricted)
  19. Lawrence J. Christiano & Martin Eichenbaum & Charles Evans, 2001. "Nominal Rigidities and the Dynamic Effects of a Shock to Monetary Policy," NBER Working Papers 8403, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  20. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June. [Downloadable!] (restricted)
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  21. Lucas, Robert E, Jr, 1980. "Equilibrium in a Pure Currency Economy," Economic Inquiry, Oxford University Press, vol. 18(2), pages 203-20, April.
  22. Dirk Niepelt, 2004. "The Fiscal Myth of the Price Level," The Quarterly Journal of Economics, MIT Press, vol. 119(1), pages 276-299, February. [Downloadable!] (restricted)
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