Country Watch | 18 October 2026 | Japan
The Bank of Japan's preliminary Corporate Goods Price Index for September 2026 showed producer prices 6.8% higher than a year earlier, versus 7.6% in August. The index nevertheless declined 0.3% month on month. Both readings are important: the annual comparison points to substantial accumulated pressure, whereas the monthly change suggests a recent easing in the aggregate index.
Japan's yen-based import price index was up 24.5% from a year earlier, illustrating how international costs and currency movements can pass through to domestic companies. There is no mechanical one-to-one relationship between producer prices and shop prices; firms can absorb costs, change margins, renegotiate contracts or pass increases on with a lag. Policymakers must decide whether current price pressure is temporary or entrenched.
The issue is open to competing interpretations and future data may change the picture.
Discussion question: How much of Japan’s wholesale inflation should the Bank of Japan treat as a lasting domestic inflation problem?
— Forgotten Fortunes Editorial