NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Is the Strong Dollar Sustainable?

Paul R. Krugman

NBER Working Paper No. 1644 (Also Reprint No. r0788)
Issued in June 1985
NBER Program(s):   ITI   IFM

This paper presents evidence strongly suggesting that the current strength of the dollar reflects myopic behavior by international investors; that is, that part of the dollar's strength can be viewed as a speculative bubble. At some point this bubble will burst, leading to a sharp fall in the dollar's value.The essential argument is that given the modest real interest differentials between the U.S. and its trading partners, the dollar'sstrength amounts to an implicit forecast on the part of the market that with high probability the dollar will remain very strong for an extended period. The paper shows that such sustained dollar strength would lead the U.S. to Latin American levels of debt relative to GNP, which is presumably not feasible. Allowing for the possibility that something will be done to bring the dollar down before this happens actually reinforces the argument that the current value of the dollar is unreasonable.

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Document Object Identifier (DOI): 10.3386/w1644

Published:

  • Krugman, Paul R. "Is the Strong Dollar Sustainable?" The U.S. Dollar--Recent Developments, Outlook, and Policy Options, pp. 103-132. Kansas City: The Federal Reserve Bank of Kansas City, 1985.
  • Paul R. Krugman, 1985. "Is the strong dollar sustainable?," Proceedings - Economic Policy Symposium - Jackson Hole, Federal Reserve Bank of Kansas City, pages 103-155. citation courtesy of

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