Japan's STEM Industry Accounts for 18.6% of Economy — Talent Supply Strengthening is Key to Growth
A report by Cebr for SThree reveals that Japan's STEM industry generated 104.7 trillion JPY (18.6% of GVA) in 2023. While engineering is the largest driver, the shrinking labor force and low education spending are critical risks to future growth.
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- 📰 Published: April 22, 2026 at 21:00
- 🔍 Collected: April 23, 2026 at 00:02 (3h 2m after Published)
- 🤖 AI Analyzed: April 23, 2026 at 04:03 (4h 1m after Collected)
According to the latest report 'Global STEM Skills Outlook Index 2026' prepared by the Centre for Economics and Business Research (Cebr) for SThree, Japan's STEM (Science, Technology, Engineering, and Mathematics) industries accounted for 18.6% of the total gross value added (GVA) in 2023, creating approximately 104.665 trillion JPY (PPP adjusted, 2020 constant prices). This demonstrates the scale and significance of the STEM sector as a cornerstone of the Japanese economy.
### Breakdown of Japan's STEM Industry (2023, PPP Adjusted)
* **Engineering (~47.9%, approx. 50 trillion JPY):** The largest segment within Japan's STEM sector. Major drivers include advanced manufacturing such as metals, machinery, and equipment, including internationally competitive industrial robots, automobiles, and precision instruments.
* **Technology (~35.5%, approx. 37.2 trillion JPY):** This sector, covering electronics manufacturing, semiconductors, telecommunications infrastructure, and information services, contributed approximately 37.2 trillion JPY. The role of the ICT sector is increasing due to expanding investments in AI and Digital Transformation.
* **Science (~16.6%, approx. 17.8 trillion JPY):** Centered on pharmaceuticals, biotechnology, and materials chemistry, this segment created approximately 17.8 trillion JPY. Basic research by universities and research institutes is leading to innovations in drug discovery and new materials.
* **Mathematics (~26.3%, approx. 27.1 trillion JPY):** Contributed approximately 27.1 trillion JPY in fields like data analysis, algorithm development, and financial modeling. Note: Math often overlaps with other categories, so the total percentage exceeds 100%.
### Overall STEM Industry and Forecast
In 2023, the overall STEM-related industry created 104.665 trillion JPY, accounting for 18.6% of Japan's total GVA. Under the baseline scenario, this is projected to expand to approximately 123.114 trillion JPY by 2035.
### Investment and Policy Trends
* **R&D Investment:** Japan's R&D expenditure stands at 3.4% of GDP, the highest among the 42 countries surveyed. In 2024, the government announced 10 trillion JPY in spending for the semiconductor and AI industries.
* **Education Expenditure:** While R&D investment is strong, Japan's education expenditure relative to GDP remains among the lowest in the comparison group, indicating a need for stronger investment in talent development.
* **Labor Population:** Japan's workforce decreased by 16% from 1995 to 2024 and is expected to decrease by another 31% by 2060, raising concerns about future STEM talent shortages.
### Commentary from SThree Japan
Christopher Reilly, Managing Director of SThree Japan, stated: 'While Japan's STEM industry boasts a world-class scale, long-term growth depends on strengthening the talent supply. This analysis highlights that while engineering and technology add significant value, the shrinking labor force and underinvestment in education are major risks. We expect a multi-faceted approach, including promoting the use of female and senior talent, accepting high-level overseas talent, strengthening investment in STEM education, and reskilling existing workers.'
### Recommendations for Talent Supply
The report suggests several initiatives: investing in STEM education from primary to university levels, expanding learning opportunities through institutional reform, creating environments where diverse talent can participate, improving systems for receiving international researchers and students, supporting reskilling for existing workers, and fostering practical human resource development through industry-academic collaboration.
### Breakdown of Japan's STEM Industry (2023, PPP Adjusted)
* **Engineering (~47.9%, approx. 50 trillion JPY):** The largest segment within Japan's STEM sector. Major drivers include advanced manufacturing such as metals, machinery, and equipment, including internationally competitive industrial robots, automobiles, and precision instruments.
* **Technology (~35.5%, approx. 37.2 trillion JPY):** This sector, covering electronics manufacturing, semiconductors, telecommunications infrastructure, and information services, contributed approximately 37.2 trillion JPY. The role of the ICT sector is increasing due to expanding investments in AI and Digital Transformation.
* **Science (~16.6%, approx. 17.8 trillion JPY):** Centered on pharmaceuticals, biotechnology, and materials chemistry, this segment created approximately 17.8 trillion JPY. Basic research by universities and research institutes is leading to innovations in drug discovery and new materials.
* **Mathematics (~26.3%, approx. 27.1 trillion JPY):** Contributed approximately 27.1 trillion JPY in fields like data analysis, algorithm development, and financial modeling. Note: Math often overlaps with other categories, so the total percentage exceeds 100%.
### Overall STEM Industry and Forecast
In 2023, the overall STEM-related industry created 104.665 trillion JPY, accounting for 18.6% of Japan's total GVA. Under the baseline scenario, this is projected to expand to approximately 123.114 trillion JPY by 2035.
### Investment and Policy Trends
* **R&D Investment:** Japan's R&D expenditure stands at 3.4% of GDP, the highest among the 42 countries surveyed. In 2024, the government announced 10 trillion JPY in spending for the semiconductor and AI industries.
* **Education Expenditure:** While R&D investment is strong, Japan's education expenditure relative to GDP remains among the lowest in the comparison group, indicating a need for stronger investment in talent development.
* **Labor Population:** Japan's workforce decreased by 16% from 1995 to 2024 and is expected to decrease by another 31% by 2060, raising concerns about future STEM talent shortages.
### Commentary from SThree Japan
Christopher Reilly, Managing Director of SThree Japan, stated: 'While Japan's STEM industry boasts a world-class scale, long-term growth depends on strengthening the talent supply. This analysis highlights that while engineering and technology add significant value, the shrinking labor force and underinvestment in education are major risks. We expect a multi-faceted approach, including promoting the use of female and senior talent, accepting high-level overseas talent, strengthening investment in STEM education, and reskilling existing workers.'
### Recommendations for Talent Supply
The report suggests several initiatives: investing in STEM education from primary to university levels, expanding learning opportunities through institutional reform, creating environments where diverse talent can participate, improving systems for receiving international researchers and students, supporting reskilling for existing workers, and fostering practical human resource development through industry-academic collaboration.