Japan inflation and energy-import pressure

Updated

What it is

This indicator tracks Japan's consumer price inflation alongside the cost of its energy imports, since Japan imports over 99% of its crude oil (more than 90% of that from the Middle East) and has almost no domestic fossil-fuel production. Because energy and raw-material costs flow directly into Japan's CPI through import prices, this indicator is a key gauge of 'imported inflation' and a central constraint on Bank of Japan policy.

Why it matters lately

Japan's CPI accelerated to 1.7% year-on-year in Q2 2026, up from 1.5% the prior quarter, driven by surging energy costs and a weak yen. Japan posted its highest-ever monthly import bill in June 2026, at 11.3 trillion yen (up 25.4% year-on-year), with May 2026 crude import prices hitting 114,076 yen per kiloliter, the highest since records began in 1979, amplified by the yen's slide to near 40-year lows against the dollar.

Asymmetric Analytics view

Inference (AA): Persistent energy-import-driven inflation narrows the BOJ's room to pause rate hikes even as growth risks rise, a key input to AA's Japan monetary-policy stress models.