BOJ Rate Hikes Won't Save Yen Amid Fiscal Woes and Negative Real Rates

The recent joint intervention from Japan and the US has put a spotlight on the Bank of Japan's (BOJ) upcoming policy decision, with some speculating that it may include promises to push for higher interest rates to defend the yen. However, despite these efforts, experts argue that BOJ rate hikes will not be enough to save the currency.

The first reason is Japan's fragile fiscal situation, which makes it difficult for the country to withstand aggressive tightening cycles. With a debt-to-GDP ratio above 200% and one of the highest among major advanced economies, any significant interest rate increases would balloon the Japanese government's cost of servicing its massive national debt.

Another issue is that Japan's real interest rates are still negative, despite the BOJ policy rate being at 1%. Even with potential hikes to 1.50%, this remains below underlying inflation, which the central bank estimates is around 2% currently. Currency traders focus on both nominal and real yields, so unless the BOJ takes bold steps to change this landscape, the yen's struggle will persist.

The third reason is that markets have already priced in what they expect from the BOJ, with traders expecting at least one rate hike by year-end and 72 basis points of hikes by June 2027. The central bank would need to deliver a surprise to signal a more hawkish stance and stem the yen's decline.