Japan producer prices rise 7.1% in October, boosting case for BoJ hike

The stronger-than-expected data bolster the case for a Bank of Japan rate increase in December. The yen may gain marginal support, but the narrowing of the rate gap is constrained by a Fed that is also on a hiking path after a hot US CPI. Crude oil and fuel imports were the main drivers of October's import price surge, making oil the pivotal swing factor. Any additional increase in energy costs linked to the Iran war would directly impact Japan's pipeline inflation and reinforce the hawks' stance. A stronger inflation environment exerts upward pressure on Japanese government bond yields. For stocks, rising input costs pose a threat to profit margins for manufacturers unable to pass along expenses.

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The trend is being obscured by cheap rice, but energy, materials, and the weak yen are once again driving Japan's pipeline inflation upward, giving the BoJ little justification to delay.

Here is a summary of the key figures:

• Japan's corporate goods price index increased 7.1% year-on-year in October, surpassing the 6.5% projection and rising from 6.8% in September.
• Month-over-month, prices climbed 0.7%, compared with a 0.3% estimate, following a revised 0.2% fall in September.
• The gain was driven by petroleum and coal, chemicals, iron and steel, and utilities, while lower rice prices pulled agriculture down 6.6% month-on-month.
• Yen-denominated import prices surged 3.3% month-on-month and are roughly 25% higher year-on-year, led by crude oil and fuels.
• The yen depreciated around 1% during the month, raising import costs.
• These data reinforce expectations of a Bank of Japan rate increase in December, following a hold at 1.25% in October.

Japan's wholesale inflation accelerated again in October, with producer prices rising faster than expected, bolstering the case for a BoJ rate hike in December. The corporate goods price index rose 7.1% from a year earlier, according to Bank of Japan data released on Thursday. That was above the median estimate of 6.5% and up from 6.8% in September. On a monthly basis, prices increased 0.7%, more than double the 0.3% consensus, following a revised 0.2% decline in September.

The rebound halts a two-month deceleration in the annual rate, primarily driven by energy and industrial materials. Month-over-month, petroleum and coal products rose about 3%, chemicals about 2%, iron and steel 2%, and electricity, gas, and water around 2.4%. Together, these four sectors contributed roughly 0.6 percentage point to the monthly increase.

The headline would have been even stronger excluding food. Agricultural products fell 6.6% month-on-month and are down 25% from a year earlier, as cheaper newly harvested rice continues to weigh on the index. Without that drag, the underlying push from manufactured goods and energy was near a 1% monthly rise. This suggests pipeline pressure is spreading, not easing.

Import costs remain the main driver. The yen-based import price index jumped 3.3% in October and is nearly 25% higher than a year ago. Most of the monthly gain came from crude oil and other fuels, with energy imports up about 46% year-on-year in yen terms, as prices stay elevated amid the Iran war. A 1% slide in the yen over the month added to the pressure. Imported memory chips and other electronics also rose sharply, echoing the strength in technology goods prices seen elsewhere.

For the Bank of Japan, the data support a move at its December meeting. The central bank held its policy rate at 1.25% in late October in an 8-1 vote, with board member Hajime Takata pushing for an immediate hike. It also said underlying inflation had reached levels broadly consistent with its 2% target. A Bloomberg survey published before that meeting showed 83% of economists expecting a December increase.

Producer prices are an upstream gauge, and the BoJ places more weight on consumer inflation and wages. But with a weak yen and high oil prices, these costs are likely to keep feeding through to households, which makes a pause harder to justify.

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The BoJ's December meeting is imminent: