In December 2025, the Japanese Diet approved a 21 trillion yen supplementary budget proposed by Prime Minister Sanae Takaichi’s newly formed government. Framed as an emergency response to growing economic insecurity, the package represents a milestone of the “Sanaenomics” project, based on an agenda of “three arrows”: monetary easing, fiscal stimulus, and structural reform.
In a recent turn of events following the budget’s parliamentary approval, the ruling LDP-Ishin coalition secured a commanding two-thirds majority in a snap election held on 8 February 2026. This outcome put an end to months of political gridlock and immediately restored market confidence. The renewed, strengthened electoral mandate enables the administration to have greater control over the legislative process and its planned economic strategy, ensuring that ambitious fiscal expansion can be executed without negotiations with the opposition.
Sanae Takaichi positions herself as the political protégé of Shinzo Abe, Japan’s longest-tenured PM, and seeks to revive his three-pronged ‘Abenomics’, which pulled the nation out of the ‘Lost Decades’ of negative economic growth and deflation. The strategy was successful as unemployment fell to a historic low of 2.2%, and the Nikkei 225 stock index doubled in value in the latter part of the last decade. Although the country slipped back into recession during the onset of the pandemic, Abenomics succeeded in reversing the deflation that had plagued Japan for decades.
The challenges that confront today’s administration are, however, fundamentally different from those of Abe’s time. Even with the new electoral mandate, the first woman to become Japan’s Prime Minister faces strong headwinds in the form of a cost-of-living crisis, massive government debt, and heightened geopolitical risk.
Sanaenomics and the Three Arrows
The first arrow aims to relieve households and businesses struggling with squeezed incomes amid elevated prices for energy, fuel, and daily necessities by providing direct assistance and subsidies. These short-term interventions are intended to stimulate consumption and create the conditions for inflation.
The second arrow of her expansive budget would establish multi-year funding frameworks to reduce dependency on imports. Specifically, the automotive, electronics, and high-tech manufacturing sectors, for which Japan is heavily reliant on Chinese rare earth materials. This strategy hinges on high-risk, high-reward investments in domains like AI and nuclear fusion energy. The budget also formalises the commitment to the recent United States-Japan Framework Agreement to collaborate on rare earth processing facilities and strategic stockpiles.
For its third arrow, the Takaichi administration plans to stimulate its industries, including the car and tech sectors, and specifically to accelerate its defence buildup by raising its defence spending to 2% of its GDP. This would mean an additional 1.1 trillion yen in government funds, effectively hitting the 2% objective two years ahead of the original 2027 schedule.
Defence, Tech, Cars and Fuel: less reliance on China
The AI and defence technology sectors are set to benefit directly from the strategic investments in the budget. The third arrow allocates resources to seventeen designated strategic areas with a sharp focus on economic security. The record-high 9.04 trillion yen defence budget is likely to benefit companies active in advanced manufacturing and national security domains. Specifically, it will make record-high allocations to defence and associated technologies such as unmanned systems, long-range strike capabilities, and air missile defence, aiming to foster a conducive environment for domestic producers.
Companies in these industries are likely to benefit from government contracts under the new administration. Additionally, the budget’s emphasis on domestic production of semiconductors and rare-earth materials could help Japanese manufacturers mitigate international competition.
For decades, the automotive industry in Japan, the 3rd largest in the world in production volume, has treated vehicles as high-value goods. This status is a result of a long tradition of craftsmanship and a legacy of technological innovation. However, the new age of Software-Defined Vehicles (SDVs) mandates a paradigm shift to keep up with the rest of the world. The budget seeks to address this and to reduce dependency on imports, particularly from China’s EV battery production, which dominates the market.
Aside from the budget, the Ministry of Economy, Trade and Industry (METI) unveiled an updated ‘Mobility DX Strategy’ to set a target of 30% share of the global market share of SDVs by 2030.
In the energy sector, Japan aims to reduce its overwhelmingly high consumption of fossil fuels and become carbon neutral by 2050. The provisions in the budget reinforce this initiative, as companies involved in grid modernisation and renewable energy deployment are likely to benefit from the Green Transformation (GX) funding.
Crucially, the budget earmarks capital to bridge Japan’s biggest infrastructural challenge, i.e. the fragmented transmission grid system. Simultaneously, METI has generously allocated funds to support the mass production of perovskite solar cells, nuclear energy, and other clean energy sources. However, the central challenge to this green transition would be Japan’s data centre expansion aspirations, which are projected to drive up energy needs substantially in the coming years.
Takaichi’s package, thus, represents a shift towards localisation of critical knowledge and production. For domestic companies, it signals a positive growth environment with government incentives. Conversely, companies abroad face the challenge of navigating a restricted, self-sufficient economy, actively reducing import dependencies.
Future Outlook
The macroeconomic environment surrounding Takaichi’s administration is substantially different from that of Abe’s time. While the latter confronted ample monetary space and a stable Diet, Takaichi has inherited an economy facing high inflationary pressures and tight fiscal constraints. Political weaknesses are also likely to create hurdles for her agenda, particularly as the focus on defence investments has led to strong criticism from opposition parties.
For the private sector, this crisis-management model marks the start of a new era of active government intervention, where the state increasingly replaces market forces with strategic investments in high-tech sovereignty.
This expansion also occurs at a sensitive time. As the Bank of Japan works on policy normalisation by raising interest rates to a 30-year high of 0.75%, the cost of servicing Japan's massive debt is expected to reach a record 32.4 trillion yen. This creates a complicated situation for the private sector: while companies operating within the seventeen strategic sectors stand to gain from extensive public-private plans and multi-year subsidies, others face rising borrowing costs and Ishin's requests for administrative cuts.
Ultimately, the stability of this fragile coalition will determine whether Japan becomes a strong ‘second capital’ for global innovation or remains a warning story of debt-driven intervention in a time of rising rates.
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