Japan PM's Sliding Polls Complicate Market Battle Over Yen and JGBs

Japanese Prime Minister Sanae Takaichi's declining political capital is creating a challenging feedback loop, weakening her administration's ability to combat intense pressure on the country's currency and government bond markets. Slumping approval ratings are reportedly hardening her resolve to pursue tax cuts and fiscal stimulus, moves that are unnerving investors concerned about Japan's mounting public debt.

A Political Dilemma

Prime Minister Takaichi's approval rating fell in July to its lowest point since she took office last year, largely due to public discontent over rising inflation fueled by a weak yen, according to a Reuters report. In response, the administration faces a difficult choice: pursuing popular stimulus measures like tax cuts could further spook markets, while fiscal austerity could erode her political standing even more.

"The sliding approval ratings would only solidify the premier’s determination to cut tax and boost investment," one government source told Reuters. This dynamic has led to what another official described as markets "gaining control over fiscal management" in a way not seen for decades, raising the risk of being at the mercy of so-called bond vigilantes.

Markets Signal Concern

Investor anxiety over Japan's fiscal trajectory has already had a significant impact. Takaichi's spending plans have helped push yields on Japanese Government Bonds (JGBs) to three-decade highs, while the yen has tumbled to a four-decade low against the dollar.

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Despite a record $72 billion currency intervention between late April and May, authorities have failed to reverse the yen's downtrend. Analysts suggest that the government's commitment to expansionist policy, including plans to remove spending caps for key growth areas in the next budget, continues to weigh on investor sentiment.

"Takaichi tried to explain how her administration was mindful of the need for fiscal discipline. But her policies themselves won’t change much, so there’s not much hope in bond markets that things could change," said Atsushi Takeda, chief economist at Itochu Research Institute.

Shifting Communication Tactics

In an effort to regain credibility, officials are increasing their communication with markets, particularly regarding fiscal policy. Finance Minister Satsuki Katayama recently stated the government would keep annual debt issuance "within a range investors would view as reasonable," a move welcomed by some market participants as a logical step.

However, markets remain largely unconvinced. Former Bank of Japan board member Takahide Kiuchi noted that the administration has not succeeded in fixing the dual headwinds of slumping ratings and eroding market trust. "To recover market trust, the administration needs to show with specific facts and figures its focus on fiscal discipline," Kiuchi said.