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Japan’s Inflation Acceleration Backs Case for Bank of Japan Rate Hike in September

By Kenji Yamamoto3 min read

Tokyo, 21 August 2026 – Japan’s consumer inflation accelerated for a third consecutive month in July, reinforcing market expectations that the Bank of Japan (BOJ) will raise its benchmark interest rate at its upcoming monetary policy meeting in September.

Data released by the Ministry of Internal Affairs and Communications showed that the core consumer price index (CPI), which excludes volatile fresh food prices, climbed 1.9 percent year-on-year in July, up from 1.6 percent in June. The deeper core inflation gauge, which excludes both fresh food and energy costs, also advanced to 1.9 percent from 1.7 percent in the preceding month, indicating that underlying price pressures are entrenching across services and manufactured goods.

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Author

  • Kenji Yamamoto is a Senior Fellow at The Ledger Asia, where he explores the critical nexus of Asian international relations, economic development, and environmental sustainability. With extensive experience in cross-border policy analysis, Kenji provides a unique perspective on how diplomatic alliances and green energy transitions drive long-term growth across the Asia-Pacific.

    Previously an advisor for regional development banks, he specializes in sustainable infrastructure and the circular economy’s role in modernizing emerging markets. At The Ledger Asia, Kenji’s deep-dive reports help readers navigate the complex balance between rapid industrialization and the global imperative for climate resilience and corporate responsibility.