Intraday Yen/Dollar Exchange Rate Movements: News or Noise?

34 Pages Posted: 23 Aug 2000 Last revised: 21 Nov 2022

See all articles by Takatoshi Ito

Takatoshi Ito

University of Tokyo - Faculty of Economics; National Bureau of Economic Research (NBER); Ministry of Finance, Tokyo

V. Vance Roley

University of Hawaii at Manoa - Shidler College of Business; National Bureau of Economic Research (NBER)

Date Written: September 1988

Abstract

Intraday movements in the yen/dollar rate are examined over the 1980-86 period using opening and closing quotes in the New York and Tokyo markets. The results indicate that random-walk behavior is violated about half of the time in various subsamples. However, the economic significance of departures from the random-walk model diminishes over time. Large jumps in the exchange rate also are examined, and some evidence on subsequent mean reversion is presented. Finally, the response of Japanese and U.S. stock prices suggests that intraday yen/dollar rate movements do contain at least some relevant information.

Suggested Citation

Ito, Takatoshi and Roley, V. Vance, Intraday Yen/Dollar Exchange Rate Movements: News or Noise? (September 1988). NBER Working Paper No. w2703, Available at SSRN: https://ssrn.com/abstract=235673

Takatoshi Ito (Contact Author)

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V. Vance Roley

University of Hawaii at Manoa - Shidler College of Business ( email )

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