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Are Price Equations Really Money Demand Equations on their Heads?


  • James G. MacKinnon
  • Ross D. Milbourne


It is often argued that the dependent variable in money demand functions is really the price level, the money stock itself being exogenous. A recent approach which stresses the theme is the "buffer stock" hypothesis, in which money supply shocks explicitly appear in the demand for money function, because prices and interest rates do not adjust rapidly enough to bring about short-run equilibrium in the money market. Although this approach has been adopted by a number of authors, it is not been subjected to much econometric testing. In this paper, we outline the economic and econometric issues involved in testing the exogenous money/buffer stock hypothesis, and subject it to a variety of tests using three different data sets. None of our results supports the hypothesis. Fundamental restrictions are rejected at very high levels of significance, and a reasonably good money demand equation is seen to be badly misspecified if interpreted as a price equation.

Suggested Citation

  • James G. MacKinnon & Ross D. Milbourne, 1986. "Are Price Equations Really Money Demand Equations on their Heads?," Working Papers 646, Queen's University, Department of Economics.
  • Handle: RePEc:qed:wpaper:646

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    Cited by:

    1. Levent, Korap, 2008. "Modeling base money demand and inflation for the Turkish economy," MPRA Paper 19617, University Library of Munich, Germany.
    2. Ryland Thomas, 1997. "The Demand for M4: A Sectoral Analysis. Part 1 - The Personal Sector," Bank of England working papers 61, Bank of England.
    3. Cem Saatçioðlu & Levent Korap, 2007. "Turkish Money Demand, Revisited: Some Implications For Inflation And Currency Substitution Under Structural Breaks," Bogazici Journal, Review of Social, Economic and Administrative Studies, Bogazici University, Department of Economics, vol. 21(1+2), pages 107-124.

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