The Indicator from Planet Money

How Japan’s new prime minister is jolting markets

December 3, 2025

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  • Japan's new Prime Minister, Sanae Takaichi, is pursuing an unconventional economic approach ("Sanaeonomics") characterized by a desire for lower interest rates, increased fiscal spending (like a large stimulus package), and restricted immigration, which contrasts with standard anti-inflationary policy. 
  • The Bank of Japan's ability to independently set interest rates is theoretically protected but practically complicated by government representation on its decision-making body, suggesting Takaichi's preference for lower rates could influence policy. 
  • Despite Takaichi's high approval rating (around 70%) among voters who desire solutions for the cost-of-living crisis, financial markets reacted negatively to her expansionary policies, evidenced by a stock market drop and rising government borrowing costs. 

Segments

Japan’s Economic Slump Context
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(00:00:11)
  • Key Takeaway: Japan experienced decades of stagnant growth and deflation before recent inflation began impacting the economy.
  • Summary: Japan’s economy has been largely stagnant since the 1990s, characterized by minimal growth and deflationary pressures. For the first time in about 30 years, inflation is now starting to significantly affect the country. This economic shift has set the stage for the new prime minister’s policies.
Introducing PM Takaichi’s Profile
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(00:00:39)
  • Key Takeaway: Sanae Takaichi, Japan’s first female Prime Minister, is characterized as radical, nationalistic, and intensely dedicated to work.
  • Summary: Sanae Takaichi became leader of the LDP and Japan’s first female prime minister in October, immediately signaling a radical streak by rejecting the concept of work-life balance. She has a background as a TV personality and is known for being nationalistic, which influenced her relationship with former US President Donald Trump. Her mentor was the late Prime Minister Shinzo Abe.
Sanaeonomics and Economic Diagnosis
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(00:01:52)
  • Key Takeaway: The core challenge for Takaichi’s administration is fixing the cost-of-living problem following 30 years of flat incomes.
  • Summary: The episode focuses on analyzing ‘Sanaeonomics’ to understand how Takaichi plans to fix Japan’s ailing economy amid rising prices. Interviews in Kobe revealed citizens are struggling with increased costs for necessities like groceries and electricity. Common concerns among the public included childcare, college costs, and immigration policy.
Central Bank Independence and Interest Rates
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(00:05:00)
  • Key Takeaway: Takaichi favors slower interest rate normalization (lower rates) than the Bank of Japan desires, potentially conflicting with inflation control efforts.
  • Summary: Economists generally agree that fighting inflation is primarily the central bank’s role via raising interest rates. Takaichi prefers lower interest rates than the Bank of Japan, which would stimulate spending and worsen inflation. Although the Bank of Japan is legally independent, government representatives sitting at the decision-making table complicate this independence.
Fiscal Policy and Productivity Steps
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(00:06:51)
  • Key Takeaway: Takaichi’s administration is pursuing fiscal expansion, including a major stimulus package, while resisting productivity gains through increased immigration.
  • Summary: To ease the central bank’s job, politicians should reduce spending or increase taxes, but Takaichi’s cabinet approved a $135 billion stimulus package, which worsens inflation through increased borrowing. Productivity increases, potentially via infrastructure investment or immigration, could stabilize prices and raise wages. However, Takaichi’s nationalist stance makes increased immigration unlikely.
Market Reaction and Public Opinion
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(00:08:19)
  • Key Takeaway: Investors distrust Takaichi’s non-orthodox economic policies, but the general Japanese public currently supports her leadership.
  • Summary: Takaichi’s combination of wanting lower interest rates, more spending, and less immigration explains investor skepticism, leading to a stock market drop and higher government borrowing rates. Despite economic concerns, Takaichi’s bold approach has earned her a high approval rating of around 70% from Japanese voters. This support may be tested if inflation continues unabated.