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Volatility spillover effects in foreign exchange markets among China, Japan, and South Korea

Author

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  • Yu, Bok-Keun
  • Kim, Kwon Sik

Abstract

This paper analyzes the dynamic spillover effects of exchange rate volatility among the foreign exchange markets of China, Japan, and South Korea from January of 2010 to March of 2024 based on exchange rate determination theories, the GJR-GARCH model, and the TVP-VAR model. The key empirical results are as follows. First, while the factors determining the CNY/USD, JPY/USD, and KRW/USD exchange rates are somewhat different, it was found that CNY/USD is influenced by the short-term interest rate differential with the U.S., JPY/USD is affected by the VIX and by a COVID-19 dummy, and KRW/USD is impacted by the difference in the money supply change rate with the U.S. and the VIX. Second, the exchange rate volatility of the three currencies was found to exhibit the well-known persistence and leverage effects. Third, regarding the time-varying spillover effects of exchange rate volatility between the three countries' foreign exchange markets, the transmission effects of exchange rate volatility between the three countries varied with the timing, frequency, and persistence.

Suggested Citation

  • Yu, Bok-Keun & Kim, Kwon Sik, 2026. "Volatility spillover effects in foreign exchange markets among China, Japan, and South Korea," KDI Journal of Economic Policy, Korea Development Institute (KDI), vol. 48(2), pages 89-109.
    • Handle: RePEc:zbw:kdijep:341454
    DOI: 10.23895/KDIJEP.2026.48.2.89
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    JEL classification:

    • E40 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - General
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • F30 - International Economics - - International Finance - - - General
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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