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Central Bank Intervention and Exchange Rate Volatility: Evidence from Japan Using Realized Volatility

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Abstract

This paper presents new empirical evidence on the effectiveness of Bank of Japan's foreign exchange interventions on the daily realized volatility of USD/JPY exchange rates using high frequency data. Following Huang and Tauchen (2005) and Barndorff-Nielsen and Shephard (2004, 2006), we use bi-power variation to decompose daily realized volatility into two components: the smooth persistent and the discontinuous jump components. We model exchange rate returns, the different components of realized volatility and the central bank intervention using a system of simultaneous equations. We find strong support that interventions by Bank of Japan had increased both the continuous and the jump components of daily realized volatility. This suggests that the interventions by Bank of Japan had increased market volatility which not only caused short-lived positive jumps but were also persistent over time. We did not find any evidence that interventions were effective in influencing the exchange rate returns for the entire sample period.

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  • Ai-ru (Meg) Cheng & Kuntal Das & Takeshi Shimatani, 2013. "Central Bank Intervention and Exchange Rate Volatility: Evidence from Japan Using Realized Volatility," Working Papers in Economics 13/19, University of Canterbury, Department of Economics and Finance.
  • Handle: RePEc:cbt:econwp:13/19
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    File URL: http://www.econ.canterbury.ac.nz/RePEc/cbt/econwp/1319.pdf
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    Cited by:

    1. João Barata R. B. Barroso, 2014. "Realized Volatility as an Instrument to Official Intervention," Working Papers Series 363, Central Bank of Brazil, Research Department.

    More about this item

    Keywords

    Foreign exchange intervention; Realized volatility; Simultaneous equations; Tobit model;

    JEL classification:

    • C34 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Truncated and Censored Models; Switching Regression Models
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions

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