Key facts
- Japan's services producer price index (CSPI) rose 3.3% year-on-year in May.
- This marks the second consecutive month the CSPI has held at 3.3%.
- Ocean freight transportation costs surged 61.8% year-on-year.
- International air passenger transportation costs rose 17.3% year-on-year.
- These increases are linked to elevated fuel costs due to the Middle East conflict and shipping disruptions.
- The data supports market expectations for further interest rate hikes by the Bank of Japan.
Japan's services producer price index (CSPI) held steady at a 3.3% year-on-year increase in May, matching the revised figure from April. This sustained level of inflation in business-to-business services prices is largely driven by significant surges in transportation costs, with ocean freight prices up 61.8% and international air passenger transport costs up 17.3% compared to the previous year. These increases are directly linked to elevated fuel costs stemming from the ongoing Middle East conflict and disruptions to key shipping lanes like the Strait of Hormuz. As Japan is a major import-dependent economy, these cost pressures are expected to transmit through to broader consumer prices over time. The Bank of Japan has identified such business-to-business price increases in distribution and logistics as a key upside inflation risk, and this data reinforces market expectations for further interest rate hikes by the central bank in the coming periods. While the BOJ has signaled readiness to raise rates further, economic repercussions from external factors like U.S. tariffs have complicated the timing of future monetary policy adjustments.