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The Structure of Won–Yen Decoupling and How to Verify Exchange Rate Claims
Short-term won–yen decoupling can be explained by more than one market force. Interest-rate expectations, foreign purchases of Korean equities, exporter currency conversions, hedging decisions, risk appetite, and the yen carry trade may affect the two currencies differently.
Understanding those drivers is only the first step. Exchange-rate narratives should also pass a cross-rate consistency check, while claims involving growth rates or major ADR financing require clear dates, reference periods, and official disclosures. This article provides a practical framework for separating plausible market explanations from figures that still need verification.
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