Summary of Key Points
The Japanese government has suddenly decided to introduce a supplementary budget of 3 trillion yen (mainly for energy subsidies) due to the rise in energy prices caused by the Middle East conflict, with the funds coming from issuing new bonds. This move has exacerbated Japan's already high debt level (260% of GDP). Coupled with inflation expectations, the yield on 10-year Japanese government bonds has soared to its highest level since 1996 (nearing the 3% warning threshold). Markets expect the Bank of Japan to pause its balance-sheet reduction (ceasing the purchase of government bonds) and raise interest rates in June to balance inflation and stabilize the bond market. Meanwhile, food prices in Japan have been rising for several years, and the actual inflationary pressure has been masked by subsidies. Global investors are optimistic about the Japanese stock market (especially the AI sector) but concerned about Japanese government bonds due to their high debt risk.
1. The U-turn from "unnecessary" to "mandatory" supplementary budget
The Japanese government previously stated that a supplementary budget was not needed, but its position changed within just a few days— simples because the existing energy subsidies are running out, and oil prices continue to rise. The Middle East conflict has kept international oil prices high, making it more expensive for Japan, a resource-importing country, to fuel its vehicles and power its infrastructure. The government's previous subsidies were keeping gasoline prices below 170 yen per liter, but these funds are running out, and without further subsidies, oil prices would rise directly, eroding the purchasing power of consumers.
The 3 trillion yen from the supplementary budget will primarily be used to continue funding energy subsidies (for gasoline, electricity, and natural gas), with the money coming from issuing "deficit bonds"—that is, the government borrowing money. However, markets do not trust the government's promises and believe more bonds will be issued, leading to an immediate reaction in the bond market.
2. Japanese government bond yields hit a 40-year high: A signal from investors
The yield on Japanese government bonds (the interest rate obtained by buying them) rose to 2.809% last week, the highest since 1996. What does this mean?
- Investors see increased debt risk for Japan: Buyers of government bonds are worried that the government may not be able to repay its debts and therefore demand higher interest rates.
- Approaching the 3% warning threshold set by the Ministry of Finance: If yields exceed 3%, the government's debt servicing costs will skyrocket (for example, borrowing 10 billion yen would cost an additional 1 billion yen in interest). With debt already accounting for 260% of GDP (the highest among major economies), Japan's fiscal space is further squeezed.
- Inflation expectations are fueling the issue: The Middle East conflict has led to imported inflation, and investors fear the devaluation of their money, demanding higher interest rates.
In short, the bond market is warning that if the government continues to borrow at this rate, the risks could get out of control.
3. The Bank of Japan's response: A combination of measures—pausing balance-sheet reduction and raising interest rates
Markets expect the Bank of Japan to take two actions in June: pause the balance-sheet reduction and raise interest rates. Why this combination?
- Pausing the balance-sheet reduction: This involves the central bank gradually reducing its purchases of government bonds (for example, buying 20 billion yen less per month). If the reduction continues, there will be even fewer buyers of government bonds, driving up yields and increasing the government's debt servicing costs.
- Raising interest rates: Raising short-term interest rates from 0.75% to 1% will encourage people to borrow and spend less, helping to curb inflation (for example, higher mortgage interest rates would reduce consumer spending). It also addresses criticism that the central bank is slow to respond to inflation.
This combination of measures aims to stabilize the situation: preventing a collapse in the bond market while addressing inflation.
4. The reality of inflation: Pressure hidden by subsidies
Japan's official core CPI is only 1.4%, but without subsidies, it is actually 2.8%, far higher than the central bank's target of 2%. This indicates that government energy subsidies are covering up the true cost of living. Without these subsidies, gasoline and electricity prices would have risen much earlier, and inflation would have exceeded the target.
Worse still, food prices continue to rise; it is expected that more than 10,000 food and beverage products will see price increases in 2026, with another potential wave of price hikes during the summer. Once the subsidies expire, these costs will be passed on to consumers, revealing the true level of inflation.
5. Divided attitudes among global investors: Optimism about Japanese stocks, concern about Japanese government bonds
Global investors have mixed views on the Japanese market:
- Optimism about Japanese stocks: The AI sector is particularly attractive, with Japanese companies in semiconductors and robotics benefiting from AI trends and attracting investment.
- Concern about Japanese government bonds: High debt levels (260% of GDP), combined with new bond issuance, have led to a sell-off of Japanese government bonds. Some investors also worry that rising bond yields could affect global liquidity—either by attracting funds from other countries (due to higher interest rates) or by causing Japanese funds to flow out of the country, which is a potential investment risk in 2026.
There are some positive aspects: Most of Japan's debt is held by domestic institutions, not foreign investors, giving the government some control over the bond market and minimizing potential major problems for now.
In summary, Japan is facing a triple challenge of fiscal pressure, inflation, and volatile bond markets. Every move by the central bank and government must be carefully considered to protect people's livelihoods, prevent debt from getting out of control, and curb inflation. For ordinary citizens, this means that expenses for fuel and groceries are likely to increase, and the cost of government borrowing is also rising, potentially leading to tighter fiscal conditions in the future.