NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Commodity Prices, Overshooting, Money Surprises, and Fed Credibility

Jeffrey A. Frankel, Gikas A. Hardouvelis

NBER Working Paper No. 1121 (Also Reprint No. r0679)
Issued in May 1983
NBER Program(s):   ME

The general price level does not provide a sensitive indicator of whether monetary policy is tight or loose, because mostprices are sticky. Interest rates are free to move, but they are an ambiguous indicator of monetary policy: one does not know whether changes in the interest rate are due to changes in the expected inflation rate or the real interest rate.Commodity prices provide the ideal sensitive indicator.This paper has two distinct aims. First, a theoretical model of "over-shooting" in commodity markets is presented. A known change in the money supply is shown to cause an instantaneous change in commodity prices that is greater than the proportionate change that describes long-run equilibrium.Second, we take the occasion of the Fed's Friday money supply announcements to test the theory. We find that an unexpectedly large money announcement causes significant negative reactions in prices of six commodities. This supports at once the sticky-price or overshooting view, and the notion that the market has confidence in the Fed's commitment to correct any deviations from its money growth targets.

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Document Object Identifier (DOI): 10.3386/w1121

Published:

  • Frankel, Jeffrey A. and Gikas A. Hardouvelis. "Commodity Prices, Money Surprises and Fed Credibility," Journal of Money, Credit and Banking, Vol. XVI I, No. 4, Part 2, Nov. 1985, pp. 425-438.
  • J. Frankel. Financial Markets and Monetary Policy. MIT Press, 1995.W

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