BOJ should not be overly cautious in raising rates, board member Koeda says

Junko Koeda argued that the Bank of Japan should continue adjusting interest rates when economic and price conditions require it. Her main warning was against excessive caution. Inflation has meaningful upside risks, so waiting too long could allow price increases to move beyond the BOJ’s 2 per cent target.

Koeda pointed to Japan’s still-accommodative financial conditions. She also noted little evidence that previous rate increases had harmed household or business activity. Broad price increases and steady wage gains are making inflation appear more firmly established, rather than temporary.

The BOJ raised its key rate to a 31-year high last month. Koeda said future decisions should consider the estimated neutral interest rate, which helps indicate whether policy is stimulating or restraining the economy. The BOJ may pause in October, but markets expect a possible December increase.

The Bank of Japan recently raised its key interest rate to its highest level in 31 years. This was an important policy shift because the BOJ is moving from supporting the economy toward preventing underlying inflation from rising too far above its 2 per cent target.

The decision matters because the BOJ signalled that further tightening remains possible. Underlying inflation is being supported by broad price increases and steady wage growth. At the same time, Koeda said financial conditions remain accommodative, with little evidence that previous increases are hurting households or businesses.

The BOJ may leave rates unchanged in October. However, Reuters sources said it is likely to use hawkish language that reinforces expectations of a December hike. Markets therefore see the next increase as plausible, although the article does not say that the decision is certain.

A 2 per cent inflation target means the BOJ aims for prices to rise gradually and predictably at about that annual pace. Such a target gives households and businesses a reference point for planning wages, spending, investment, and contracts. It also helps the central bank judge whether policy is too loose or too tight.

The article gives no exact recent inflation reading. Instead, Koeda says price increases are occurring across a wide range of consumer goods. That breadth matters because inflation based on many products may be more persistent than a temporary rise in a few items. Rising wages provide additional support for continued price growth.

Koeda believes underlying inflation is becoming anchored around the BOJ’s 2 per cent target. This suggests progress toward durable inflation, but also creates upside risks. If price and wage increases accelerate too much, the BOJ may raise rates to prevent inflation from overshooting.

The neutral interest rate is an estimated rate consistent with an economy operating without monetary policy strongly boosting or slowing demand. It is not a fixed number that can be observed directly. Central banks use estimates of it as a guide when deciding whether current rates are unusually supportive or restrictive.

For example, if inflation is rising and the policy rate remains well below neutral, borrowing may still be relatively easy. Raising rates toward a more neutral level could reduce excess demand gradually. If rates move far above neutral, borrowing and spending may weaken sharply, damaging households, businesses, and employment.

Koeda specifically said the BOJ should adjust rates while keeping the estimated neutral rate in mind. The article does not provide the estimate itself. Considering it could help the BOJ respond to inflation risks while avoiding unnecessary economic damage from overly aggressive tightening.

Inflation becomes more durable when price increases extend across many goods and services and continue over time. It is also more likely to persist when wages rise, because households have more income to spend and businesses face higher labor costs. These forces can reinforce one another.

Koeda cited continued price increases across a wide range of consumer items. She also pointed to steadily rising wages. Together, these signs suggest that inflation is becoming anchored around the BOJ’s 2 per cent target, rather than depending on a narrow group of products or a short-lived factor.

This matters for policy because durable inflation may require less monetary support. Koeda said Japan appears to be making more lasting progress toward sustained inflation, while also warning of considerable upside risks. The BOJ may therefore adjust rates as needed, even if it pauses in October and considers another increase in December.

When a central bank raises interest rates, loans usually become more expensive and saving becomes more attractive. Households may reduce borrowing and spending, while businesses may delay investment. These effects can cool demand, which helps slow inflation when prices are rising too quickly.

For example, a household with a variable-rate loan may face higher payments, leaving less money for other purchases. A company may postpone a project because financing costs have increased. Weaker demand can reduce pressure on prices, but excessive tightening can hurt activity and employment. The article says Japan has shown little such damage after past hikes.

Higher rates can also make a currency more attractive to investors seeking better returns, potentially strengthening the yen. That is not guaranteed, because exchange rates respond to many forces. For Japan, the BOJ’s choices will balance inflation risks against possible harm to households and businesses.

Central banks use interest rates to influence borrowing, saving, spending, and investment. If inflation is too high, raising rates can cool demand and reduce price pressure. If growth is weak and inflation is subdued, lowering rates can support economic activity. The goal is not simply the highest or lowest rate, but a sustainable balance.

A central bank might raise rates in small steps while watching prices, wages, employment, and household and business activity. It can pause if earlier increases are working. It may continue tightening if inflation remains broad or threatens to overshoot its target. This gradual approach reduces the risk of unnecessary economic damage.

The BOJ’s discussion reflects that balance. Koeda called for timely adjustments while considering the neutral interest rate. Japan’s financial conditions remain accommodative, and past hikes have shown little harm so far. Still, future decisions must weigh durable inflation against weaker demand.