Sanae Takaichi's Big Bet: Can Japan Afford a ¥370 Trillion Investment?

Prime Minister Sanae Takaichi has proposed a radically different plan for Japan, with a central goal of ¥370 trillion in investments by 2040. These investments are slated for diverse sectors including chips, artificial intelligence (AI), defense, food technology, and even manga.

Takaichi believes Japan should stand shoulder to shoulder with other major economies. Her plan comes against a daunting backdrop, as Japan's debt-to-GDP ratio is already the highest among G10 nations. The country also faces significant demographic challenges, including an aging population and a low birth rate.

Furthermore, diplomatic tensions with China are at a low point, and Japanese citizens continue to feel the pain from higher living costs and inflation. These economic pressures present a make-or-break issue for Takaichi's administration as she seeks to revive the world's fourth-largest economy.

Sanae Takaichi, born in Nara, stands apart from many Japanese politicians who have reached the pinnacle of the system, as she does not come from a political dynasty. Described as an ordinary person, she grew up in a normal mid-income family and reportedly had a rebellious side when she was younger, including a liking for heavy metal drumming.

Takaichi successfully ran for leadership of the Liberal Democratic Party (LDP) at a time when the party was in poor shape following recent electoral defeats. She was able to tap into right-wing sentiment, particularly on issues like immigration, helping to draw energy away from upstart right-wing parties. While her approval ratings have seen a slow and steady decline, she remains very popular compared to her predecessors, all of whom were men.

Sanae Takaichi's ascent as Japan's first female prime minister marks a historic milestone in Japanese politics. This is particularly significant given that female representation in Japanese politics is currently 14%, significantly lower than the global average of about 30%.

Despite her historic role, Takaichi's politics are socially conservative. She openly opposes legalizing same-sex marriage and allowing married couples to retain separate legal surnames. These positions are seen as strategic, helping to attract conservative voters to the LDP, but they also highlight a contrast between her groundbreaking leadership and traditional social values.

The Japanese yen has experienced historic weakness, trading above 160 to the dollar by July 2026, marking its weakest level in four decades. For context, in 1986, $1 bought about ¥160, a figure that dropped to ¥76 by 2011 before returning to over ¥160. This depreciation makes imports significantly more expensive for Japan.

This economic shift is fueling inflation for households and businesses that are highly reliant on imported food and energy. Japan's dependence on imported oil from the Middle East, for instance, has always made it vulnerable to rising oil prices. An example of this impact was seen with potato chip bags, which had to be printed in silver due to unstable ink supplies, illustrating how even everyday items are affected.

Unlike many other nations, Japan is not accustomed to long-term inflation, having experienced flat prices, weak wage growth, and ultra-low borrowing costs for nearly three decades. The recent return of persistent inflation has left the country struggling with the rising cost of living, which is part of why people are really worried at the moment.

Japan is grappling with a profound demographic issue where deaths now outnumber births, and the centenarian population has crossed the six-figure mark. While increased longevity is positive, the challenge lies in funding it with a shrinking workforce.

Despite the country's need for more foreign workers to offset this demographic shift, Prime Minister Takaichi has implemented tighter immigration rules and promised stricter enforcement. This approach contrasts with the need for additional labor to support the elderly population.

Prime Minister Takaichi has demonstrated an unconventional approach to governance and media relations, differing from her predecessors. According to a Bloomberg calculation, she has met with ministry officials much less frequently than previous prime ministers, who typically valued informal meetings and dinners with lawmakers.

Additionally, Takaichi conducts far fewer media interviews, preferring to use social media as her primary platform for communication when she has something to convey. This reflects a shift from traditional political engagement methods in Japan.

In response to the rising cost of living, Prime Minister Takaichi's administration has subsidized gasoline and energy prices over the summer. She has also focused on diversifying Japan's oil supply. Looking ahead, she has pledged to cut the consumption tax on food and soft drinks from 8% to 1% for two years, starting in April 2027.

A cornerstone of her long-term strategy is a ¥370 trillion public and private investment plan, to be rolled out over 14 years across 17 crucial sectors. These sectors include artificial intelligence, defense, energy, semiconductors, food technology, and content creation such as manga and anime. The aim is to foster a stronger Japan with sturdier supply chains and enhance its role as an economic and security partner in Asia. Takaichi is also looking to overhaul defense guidelines amidst growing challenges from China, North Korea, and Russia.

Prime Minister Takaichi's assertion that a war over Taiwan would constitute an existential threat to Japan provoked a strong reaction from China. China, being a neighboring country and Japan's largest trading partner, launched a significant diplomatic campaign to try and isolate her and pressure her to retract her statements. Takaichi, however, has firmly refused to change her position, a departure from previous prime ministers who were often more circumspect.

Her broader stance on defense also marks a significant shift. For decades, Japan's defense spending remained around 1% of GDP, but this increased to about 2% under previous Prime Minister Kishida in 2022. Takaichi aims to go even further, seeking to increase defense spending beyond this benchmark. She has also worked to maintain a good relationship with President Trump, who has long encouraged America's allies to increase their defense spending, though some domestic criticism suggests she may have been overly eager to impress him.

As the yen continued to weaken, Japan and the US Treasury undertook a direct, coordinated intervention in the currency market to bolster its value. This marked the first such joint intervention in approximately 15 years. US Treasury Secretary Scott Bessent indicated that there would be no hesitation to intervene again if necessary.

Japan holds over a trillion dollars of US government debt, and Japanese investors collectively represent one of the world's largest pools of capital. Consequently, fluctuations in the yen's value can have far-reaching effects beyond Tokyo, making coordinated efforts to stabilize the currency crucial for global financial markets.

Japan's government debt is currently more than twice the size of its economy, a level significantly higher than other major economies like the UK, France, the US, and Germany. Servicing this existing debt already consumes approximately one-fifth of Japan's annual budget. This substantial debt load is a major concern as the government contemplates financing its new investment initiatives.

The ¥370 trillion investment plan is a target for both public and private investment, not solely a government expenditure. However, the public portion will likely require the government to issue additional bonds, which could intensify existing financial pressures. Markets are expressing concern that if this ambitious project does not succeed, it could impose a massive burden on Japan's public finance, making fiscal health a key measure for the government.

Prime Minister Takaichi's political power is largely dependent on the popularity of the broader public, as she does not have a solid base of support within the ruling party. This makes public sentiment crucial for the success of her policy agenda.

Currently, people are reacting quite positively to her economic policies, expressing more hope compared to a few years ago. This public mandate empowers her to pursue her ambitious plans, working towards making a stronger, richer, and safer Japan, although the ultimate outcome remains to be seen in her second year and beyond.