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Deflationary Bubbles

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  • Buiter, Willem H.
  • Sibert, Anne

Abstract

In an attempt to clean up an unruly literature, we specify the necessary and sufficient conditions for household optimality in a model where money is the only financial asset and provide the relevant proofs. We use our results to analyse when deflationary bubbles can and cannot exist. Our findings are in contrast to the results in several prominent contributions to the literature. We argue for particular specifications of the no-Ponzi-game restrictions on the household's and government's intertemporal budget constraints in a model with money and bonds. Using the restriction on the household we derive the necessary and sufficient conditions for household optimality. The resulting equilibrium terminal conditions are then used to demonstrate that the existence of bonds does not affect when deflationary bubbles can and cannot occur. This result differs from that in other recent works.

Suggested Citation

  • Buiter, Willem H. & Sibert, Anne, 2006. "Deflationary Bubbles," CEPR Discussion Papers 5637, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:5637
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    Cited by:

    1. Buiter, Willem H., 2004. "The Elusive Welfare Economics of Price Stability As A Monetary Policy Objective: Should New Keynesian Central Bankers Persue Price Stability," CEPR Discussion Papers 4730, C.E.P.R. Discussion Papers.
    2. Willem Buiter, 2007. "Is Numérairology the Future of Monetary Economics?," Open Economies Review, Springer, vol. 18(2), pages 127-156, April.
    3. Buiter, Willem H., 2009. "Negative nominal interest rates: Three ways to overcome the zero lower bound," The North American Journal of Economics and Finance, Elsevier, vol. 20(3), pages 213-238, December.
    4. Buiter, Willem H., 2017. "The Fallacy of the Fiscal Theory of the Price Level - Once More," CEPR Discussion Papers 11941, C.E.P.R. Discussion Papers.
    5. Buiter, Willem H., 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.
    6. Buiter, Willem H., 2017. "The Good and the Bad Fiscal Theory of the Price Level," CEPR Discussion Papers 11975, C.E.P.R. Discussion Papers.
    7. Buiter, Willem H. & Sibert, Anne C., 2017. "The fallacy of the fiscal theory of the price level - one last time," Economics Discussion Papers 2017-84, Kiel Institute for the World Economy (IfW).
    8. W.H. Buiter, 2007. "Is Numérairology the Future of Monetary Economics? Unbundling numéraire and medium of exchange through a virtual currency and a shadow exchange rate," CEP Discussion Papers dp0776, Centre for Economic Performance, LSE.
    9. Willem H. Buiter, 2003. "Helicopter Money: Irredeemable Fiat Money and the Liquidity Trap," NBER Working Papers 10163, National Bureau of Economic Research, Inc.
    10. Zhou, Ge, 2011. "Rational bubbles and the spirit of capitalism," MPRA Paper 33988, University Library of Munich, Germany.
    11. Ulrich van Suntum & Metin Kaptan & Cordelius Ilgmann, "undated". "Reducing the lower bound on market interest rates," Working Papers 200103, Institute of Spatial and Housing Economics, Munster Universitary.
    12. Óscar J. Arce, 2005. "Reflections on fiscalist divergent price-paths," Working Papers 0533, Banco de España;Working Papers Homepage.

    More about this item

    Keywords

    deflationary bubbles; transversatility conditions;

    JEL classification:

    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E40 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - General

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