Yen Tumbles as Sanae Takaichi Takes LDP Leadership

The Japanese yen fell to an eight-month low, breaking above 153 against the US dollar, following the election of Sanae Takaichi as leader of the Liberal Democratic Party. Markets reacted to Takaichi's preference for expansionary fiscal policies and her criticism of interest rate hikes, which reduced expectations for a Bank of Japan rate increase during the October 30 policy meeting. While Takaichi later stated she has no intention of triggering an excessively weak yen, her advisers argued that a weaker currency supports domestic manufacturing and provides a buffer against U.S. tariffs.

To combat the depreciation, the Government of Japan and the United States coordinated currency interventions. President Donald Trump characterized the U.S. involvement as a "signal of friendship." Finance Minister Katsunobu Kato warned against "one-sided, rapid moves" in the market, though the yen remained volatile due to the subsequent collapse of the LDP-Komeito coalition.

Monetary policy remains a point of contention. Bank of Japan Governor Kazuo Ueda expressed caution regarding the speed of rate hikes, citing U.S. economic uncertainty and a federal government shutdown. Conversely, former BOJ official Kazuo Momma suggested that persistent yen weakness might actually force the bank to raise rates as early as October to protect government approval ratings. By mid-October, the yen's safe-haven appeal further diminished as Donald Trump softened tariff threats against China and scheduled a meeting with Xi Jinping in South Korea.