According to data from the Bank of Japan, the producer price index in Japan's services sector rose by 3.6% year-on-year in July, accelerating from the revised figure of 3.4% in June and exceeding market forecasts. This growth is significant because service prices are more closely linked to domestic wage pressures and costs than to the prices of imported goods. This indicates that companies are increasingly passing on increased labor and operating costs to consumers, making inflation in Japan less dependent solely on external shocks.
The latest service data came after the release of July consumer inflation reports. The base Consumer Price Index of Japan, excluding fresh food, increased by 1.8% compared to a year earlier, which is higher than the 1.6% recorded in June, marking the second consecutive monthly acceleration. Government data shows that the measure excluding both fresh food and energy rose by 1.9%.
Overall consumer inflation in July stood at 1.9%. These figures collectively point to a broader trend of rising prices. Although Japan continues to face strong pressure from imports and energy, price increases are gradually affecting the services sector, where sustained inflation could become more deeply rooted in the national economy.
This is particularly important for the Bank of Japan (BOJ) after many years when the country struggled to achieve sustainable inflation. A temporary spike in import prices may subside as commodity or exchange rates stabilize. However, service inflation driven by wages and domestic costs is harder to reverse without weakening demand or tightening monetary policy.
Currency remains a central issue. The yen traded around the 159.3 level against the dollar on Thursday, remaining close to the 160 level despite growing expectations of a BOJ rate hike. A weaker yen makes imported energy, food, and raw materials more expensive in local currency. This pressure is already visible in Japanese price data: the producer price index rose by 7.2% in July, and the dollar-yen import price index jumped by 29.1%.
Trade data also explains why the currency market is important for Japan's inflation outlook. In July, Japan recorded a trade deficit of 634.5 billion yen, as imports increased by 27.8% year-on-year, outpacing export growth of 23.2%.
These trade figures matter for the yen beyond just the deficit. Japanese importers require foreign currency to pay overseas suppliers. When the import bill rises, companies are forced to buy more dollars and other currencies, creating actual demand for foreign currency and potentially increasing downward pressure on the yen.
This creates a complex feedback loop: a weaker yen raises import costs, higher costs affect corporate prices, and broader inflation intensifies pressure on the BOJ to tighten monetary policy.
The combination of broader inflation and a weak currency makes the BOJ meeting in September increasingly significant. The central bank raised its policy rate to 1% in June and kept it unchanged in July. The next meeting is scheduled for September 17–18.
Market expectations have shifted sharply. According to a Reuters poll, 57% of economists predicted a BOJ rate hike to 1.25% in September, up from only 5% in the previous month's survey. BOJ Deputy Governor Ryozo Himino confirmed these expectations on Thursday, stating that policymakers should pay more attention to inflation risks, and suggested that timely rate hikes could help prevent the need for sharper tightening in the future. However, he did not give a clear signal about a September rate hike.
Thus, for the BOJ, the question is less about whether there is inflation in Japan and more about how sustainable this inflation will be. The central bank must balance two opposing risks: reacting too slowly might allow high import costs and service prices to become entrenched, while overly aggressive tightening could negatively impact consumer spending and business activity.
The yen adds another layer of uncertainty. Even with rising expectations for a September rate hike, the currency remains near the 160 mark against the dollar. This suggests that the interest rate differential with the United States, global capital flows, and Japan's import demand continue to offset some of the support that a tighter BOJ policy might provide.
Currently, the latest Japanese data sends a clear signal: inflationary pressure is spreading beyond imported goods and penetrating the services sector, while the weak yen continues to amplify the cost shock. As the currency approaches the 160 mark again, the BOJ meeting in September may test not only Japan's commitment to normalizing monetary policy but also whether higher interest rates can finally help break the cycle of yen weakness and import inflation.