Key Takeaways
Japan's government is preparing to compile a supplementary budget funded by new debt to offset inflationary shocks from the Middle East, a policy shift that sent the 30-year government bond yield to its highest level since its 1999 introduction.
"When countries like Japan and Britain contemplate fiscal stimulus, there's a tendency for that to trigger a triple selling of shares, currencies, and bonds because their economic growth is weak and inflationary risks are high," said Daisuke Uno, chief strategist at Sumitomo Mitsui Banking.
The market reaction was swift and severe. The benchmark 10-year Japanese government bond (JGB) yield surged to 2.8% on Monday, a level not seen since October 1996, while the 30-year yield touched a record high. The move follows weeks of denials from Prime Minister Sanae Takaichi and Finance Minister Satsuki Katayama about the need for more spending, a stance that became untenable as funds for energy subsidies began to run out.
The decision places the government's fiscal policy in direct conflict with the Bank of Japan's monetary tightening goals. With wholesale inflation hitting a three-year high of 4.9% in April, the central bank is under pressure to raise its policy rate from 0.75% at its next meeting in June. The new stimulus complicates that decision, adding fuel to an already overheating economy and increasing the risk of a disorderly bond market reaction.
The planned supplementary budget is expected to function as an emergency relief measure, not a broad stimulus program. The primary drivers are surging oil prices and the rapid depletion of reserve funds used to cap gasoline prices. According to Takahide Kiuchi, an executive economist at the Nomura Research Institute, the funds for gasoline subsidies could be exhausted as soon as June 29. The government is also reportedly considering restarting subsidies for natural gas and electricity that expired in March, which would further increase the size of the budget. The opposition Democratic Party for the People has proposed a package of around 3 trillion yen ($18.9 billion), which may serve as a floor for the final amount.
The prospect of issuing fresh debt to fund the new spending has amplified concerns over Japan's fiscal health. The country already has the highest debt-to-GDP ratio among major developed economies, and analysts project the budget deficit could surge to 6% of GDP by fiscal 2026 on the current path. International bodies like the OECD and the Asian Development Bank have recently urged Japan to rein in its reliance on extra budgets to preserve a necessary fiscal buffer for future crises.
The bond selloff complicates the BOJ's upcoming decisions. Nomura Securities executive rates strategist Mari Iwashita said the 10-year yield could head towards 3%, and that heightened inflation risks could push the central bank to raise its short-term rate to 1.5% by the end of the fiscal year in March. The last time Japanese monetary dynamics shifted abruptly in July 2024, it triggered a significant yen unwind that cascaded into global crypto sell-offs, highlighting the potential for cross-asset contagion.
This article is for informational purposes only and does not constitute investment advice.
