The Bank of Japan's Research and Statistics Department publishes staff estimates of core inflation indicators, calculated by removing transitory disturbances and institutional factors from observed consumer price movements. The set includes CPI excluding institutional factors, plus distribution-based measures: the trimmed mean, weighted median, mode, and diffusion index of increasing/decreasing items. Institutional factors removed include consumption tax changes, free education policies (including free school lunches from April 2026), the 2021 reduction in mobile phone charges, travel subsidy programs, and measures to reduce energy cost burdens. Data are generally released at 2:00 p.m., two business days after Japan's official CPI.
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Related tickers and likely impact
USD/JPY
• NeutralRelevance: medium
| Market | Currencies |
|---|---|
| Close on 10/26/2026 | 157.500 |
| Change that session | +0.42% |
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