Sanae Takaichi, Japan's Prime Minister, is projected to secure an overwhelming victory in the general election, positioning her as the country's strongest leader in years—an outcome that could heighten market volatility. According to NHK, her Liberal Democratic Party and its coalition partner, the Innovation Party, appear certain to capture a two-thirds supermajority in the 465-seat House of Representatives. The public broadcaster's tally indicates that the ruling coalition has already secured 269 seats, significantly expanding its previous narrow majority of 233.

Investors have been preparing for a decisive win by the LDP, driving up Japanese equities while selling off the yen and government bonds. They anticipate that an emboldened Takaichi will ramp up spending and investment to stimulate the economy, potentially slowing the pace of interest rate hikes by the Bank of Japan. The final results will determine whether the so-called "Takaichi trade" gains momentum or loses steam.

Economists and market observers are paying particularly close attention to Takaichi's stance on spending plans, the possibility of eliminating the consumption tax on food, and her views on the yen. Over the weekend, her remarks appeared to favor the benefits of a weaker currency. However, Takaichi later expressed a desire to build a robust economy less vulnerable to exchange rate fluctuations.

"This uncertainty is not particularly helpful for the yen, and we could see it test the 159 or 160 level in the coming days," said Chris Scicluna, Head of Economic Research at Daiwa Capital Markets Europe. "I think we are likely to hear more talk about potential intervention measures this week."

On the policy front, a key issue in the election has been household cost-of-living pressures, as Japan experiences sustained inflation for the first time in a generation. Both the LDP and the main opposition party, the Centrist Reform Coalition, have advocated reducing the consumption tax on food to zero to assist households. However, the LDP views this as a temporary measure, while the Centrist Reform Coalition insists on making it permanent.

"Monthly food expenses are hitting us hard," said Yutaka Furusawa, a 58-year-old office worker in Tokyo, noting that food now accounts for a growing share of his daily spending.

For the past three decades, prices in Japan have remained largely stable. Now, a weak yen is changing everything.