Japanese Government Bond Yields Hit Nearly 30-Year High, Fiscal Expansion Space Under Pressure

Japan's 10-year government bond yield briefly rose to 2.945% this week, marking a nearly 30-year high and approaching the critical 3% level assumed in the Japanese government's budget. Rising yields are increasing pressure on government debt servicing, undermining Prime Minister Sanae Takaichi's room to pursue large-scale fiscal expansion and growth investment. The Japanese government has allocated 31 trillion yen for debt servicing in the current fiscal year; if long-term yields remain above 3%, debt financing costs could significantly exceed the budget.