IIF Asia Economic Views: The Yen After Intervention — Fair Value Remains Far Stronger

About this work

After coordinated US-Japan intervention, the note estimates a medium-term yen equilibrium range of 125–138 per dollar, stronger than the market rate near 157. It distinguishes the model's unadjusted signal from a more conservative undervaluation estimate and shows how investment income retained abroad limits currency-market demand. Intervention may alter near-term risks, but sustained convergence would depend on a better policy mix rather than repeated currency purchases.