Tokyo's core consumer price index, which excludes fresh food but includes fuel, rose by 2.6% from a year earlier, government data showed. The increase matched the median market forecast but eased from 2.7% in September. A separate measure that excludes both fresh food and fuel, closely monitored as an indicator of underlying inflation, also increased by 2.6%, compared with 2.9% a month earlier.
The figures are significant because Tokyo's inflation data are regarded as an early indicator of wider national price trends. Although the moderation in both measures suggests some easing in price growth, inflation remains above the central bank's 2% target.
The data were released ahead of the Bank of Japan's monetary policy announcement on Friday. The central bank was widely expected to leave its policy settings unchanged, while maintaining its position that interest rates may need to rise further if underlying inflation develops in line with its outlook.
The BOJ has been navigating a delicate balance between preventing inflation from becoming entrenched and avoiding an abrupt tightening of financial conditions. Higher borrowing costs could strengthen the yen and help contain imported inflation, but they could also increase financing expenses for households and companies.
Currency movements remain an important part of the policy debate. A weaker yen can raise the cost of imported energy, food and industrial inputs, adding to inflationary pressures for an economy that relies heavily on overseas supplies. Conversely, further monetary tightening could affect domestic consumption and investment by increasing the cost of credit.
The October figures therefore offer policymakers evidence that price pressures remain persistent, even as the pace of inflation has moderated slightly.
For financial markets, attention will centre on the BOJ's assessment of underlying prices, wage developments and the outlook for economic activity. The central bank's communication will be important in determining whether investors interpret the latest data as support for an earlier rate increase or a reason to maintain the current policy stance for longer.
