- In April, Japan's service producer price index rose by 3.0% year-on-year. Although this is a slowdown from the revised 3.3% in March, it remains at historically high levels for several months, indicating that domestic service sector inflation momentum remains strong.
- The continuously tightening labor market is forcing service companies to accelerate the transfer of labor costs to their business clients, showing that Japan's economy is shifting from a cost-driven inflation to a wage-led inflation.
- With consumer prices remaining above the 2% target level for nearly four consecutive years, the probability of the Bank of Japan continuing to normalize monetary policy in the second half of this year has significantly increased, and market swap pricing is reassessing the interest rate hike window.
Formation of Labor Cost Transfer Chain
According to the latest disclosed data, the service producer price index, which tracks changes in service prices between companies, continues to rise. Although the 3.0% year-on-year increase in April slightly fell from the previous value, this was mainly due to the high base effect from the same period last year, and the overall upward trend has not fundamentally reversed. Japan is currently facing a severe structural labor shortage, especially in industries such as information technology, logistics, and hospitality. Companies have to raise basic wages to retain employees. The cost pressure brought by these wage increases is being passed down the chain more efficiently than the historical average, indicating a structural change in corporate pricing behavior.
Opening Space for Monetary Policy Normalization
In 2024, the Bank of Japan officially ended its decade-long ultra-loose monetary stimulus plan and further raised the short-term policy rate to 0.75% last December. The central bank governor and policy committee members have repeatedly emphasized that whether to continue tightening liquidity in the future depends entirely on whether endogenous inflation driven by wage growth and domestic demand recovery can be established. The performance of service sector inflation data in April has largely provided key empirical support for Bank of Japan officials, proving that price increases are not entirely driven by external factors such as imported raw material prices, clearing a key obstacle for subsequent interest rate adjustments.
Structural Stickiness of Service Sector Inflation
Compared to commodity prices, which are easily affected by global commodity cycles, service prices usually exhibit stronger stickiness. Japan's CPI has remained above 2% for nearly four years, and the continued high level of service sector PPI indicates that this round of price increases has stronger resilience than the market expected. If service sector inflation shows lasting resilience in the coming quarters, even if commodity prices weaken due to improvements in external supply chains, Japan's overall inflation rate will be difficult to fall back below the 2% target. This structural stickiness is the healthy inflation form that policymakers most hope to see.
Significant Rise in Market Rate Hike Expectations
After the data release, traders in Tokyo's fixed income market began to raise the risk premium for liquidity tightening. If service prices and the results of spring wage negotiations are further cross-verified in future macroeconomic data, the Bank of Japan may raise the policy rate target range to 1.0% or higher in the third or fourth quarter of this year. However, looking ahead, if global macroeconomic demand unexpectedly slows down more than expected, or if the yen exchange rate experiences a sharp rebound in the short term, the Bank of Japan may show more caution in weighing the pace of rate hikes to prevent the nascent economic recovery from being suppressed.
