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

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  • Takatoshi Ito
  • V. Vance Roley

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

  • Takatoshi Ito & V. Vance Roley, 1988. "Intraday Yen/Dollar Exchange Rate Movements: News or Noise?," NBER Working Papers 2703, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:2703
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    2. Hashimoto, Yuko & Ito, Takatoshi, 2010. "Effects of Japanese macroeconomic statistic announcements on the dollar/yen exchange rate: High-resolution picture," Journal of the Japanese and International Economies, Elsevier, vol. 24(3), pages 334-354, September.
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    4. Osler, C. L., 1995. "Exchange rate dynamics and speculator horizons," Journal of International Money and Finance, Elsevier, vol. 14(5), pages 695-719, October.
    5. Ranaldo, Angelo, 2009. "Segmentation and time-of-day patterns in foreign exchange markets," Journal of Banking & Finance, Elsevier, vol. 33(12), pages 2199-2206, December.
    6. Ito, Takatoshi & Engle, Robert F. & Lin, Wen-Ling, 1992. "Where does the meteor shower come from? : The role of stochastic policy coordination," Journal of International Economics, Elsevier, vol. 32(3-4), pages 221-240, May.
    7. Osler, C. L., 1998. "Short-term speculators and the puzzling behaviour of exchange rates," Journal of International Economics, Elsevier, vol. 45(1), pages 37-57, June.
    8. Lin, Wen-Ling, 1995. "Market closure and predictability of intradaily stock returns in the United States and Japan," Journal of Empirical Finance, Elsevier, vol. 2(1), pages 19-44, March.

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