How long can Japan prop up the yen?

​FILE PHOTO: Japanese Yen and U.S. dollar banknotes are seen in this illustration taken March 10, 2023.
FILE PHOTO: Japanese Yen and U.S. dollar banknotes are seen in this illustration taken March 10, 2023.
REUTERS/Dado Ruvic/Illustration/File Photo

Japan’s currency slipped to 160 yen to the dollar on Monday, its lowest rate since 1990, triggering a government intervention and threatening Prime Minister Fumio Kishida’s position.

Voters are frustrated by Japan’s high cost of living, but a change in leadership is unlikely to alleviate the pain. The heavily populated island has few fossil fuel reserves, and it must import food and energy from abroad. That means when the yen weakens, ordinary folks see their bills shoot up.

The government employed a short-term fix: selling dollar reserves and buying yen to boost it. But Eurasia Group analyst David Boling says there’s not much to be done about the root of the problem.

“The yen’s weakness is being driven by the interest rate differential between the US, which has high interest rates and high bond yields, and Japan, which is very low,” he says. “Money is moving out of Japan to capture those higher yields.”

It might be another nail in the coffin for the PM, who could be replaced at the Liberal Democratic Party’s leadership conference this September.

“Japan has to have a lower house election by October 2025, and so the members of the LDP will be thinking about electing a leader who can take them through a national contest,” says Boling.

More from GZERO Media

- YouTube

Tensions in the Middle East escalate as Israel launches a surprise military strike against Iran, prompting international concern and speculation about broader conflict. In his latest Quick Take, Ian Bremmer calls Israel’s strike on Iran “a huge success for the Israelis” and a significant blow to Iran’s regional influence.

Iranian policemen monitor an area near a residential complex that is damaged in Israeli attacks in Tehran, Iran, on June 13, 2025.
Morteza Nikoubazl/NurPhoto

Israel bombed Iran’s nuclear facilities Thursday night, causing “significant damage” at the country’s main enrichment plant, killing leading Iranian military figures and nuclear scientists, and sparking fears that the Middle East is on the verge of a wider war.

A tank on display at a park in Washington, D.C., on June 12, 2025, two days ahead of a military parade commemorating the U.S. Army's 250th anniversary and coinciding with President Donald Trump's 79th birthday.

Kyodo via Reuters Connect

The official reason for this weekend’s military parade in Washington DC is to commemorate the 250th anniversary of the US Army – but the occasion also just happens to fall on President Donald Trump’s 79th birthday.