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Japan vs Portugal

On research quality in 2022-now, Portugal ranks #24 in the world and Japan #27, of 189 countries. Japan stands higher in 6 of the 26 fields both publish in, Portugal in 20.

Japan

World rank, 2022-now
#27
#14 all time
Works, 2022-now
558k
fractional
Top-10% rate
10.7%
share of its work among the world's most cited
Open access
42%
of its works free to read

Strongest relative focus: Condensed Matter Physics, Structural Biology, Gastroenterology.

Portugal

World rank, 2022-now
#24
#24 all time
Works, 2022-now
129k
fractional
Top-10% rate
18.3%
share of its work among the world's most cited
Open access
58%
of its works free to read

Strongest relative focus: Tourism, Leisure and Hospitality Management, Filtration and Separation, General Arts and Humanities.

Who leads in each field?

Japan stands higher in 6 of 26 fields, Portugal in 20. Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Japan 620 Portugal
  1. #41Agricultural and Biological Sciences#16
  2. #36Arts and Humanities#26
  3. #21Biochemistry, Genetics and Molecular Biology#22
  4. #61Business, Management and Accounting#13
  5. #25Chemical Engineering#18
  6. #27Chemistry#25
  7. #37Computer Science#27
  8. #51Decision Sciences#19
  9. #21Dentistry#19
  10. #25Earth and Planetary Sciences#24
  11. #34Economics, Econometrics and Finance#18
  12. #28Energy#30
  13. #33Engineering#22
  14. #33Environmental Science#16
  15. #46Health Professions#22
  16. #17Immunology and Microbiology#20
  17. #26Materials Science#24
  18. #24Mathematics#35
  19. #16Medicine#31
  20. #26Neuroscience#25
  21. #52Nursing#18
  22. #31Pharmacology, Toxicology and Pharmaceutics#13
  23. #11Physics and Astronomy#30
  24. #38Psychology#25
  25. #44Social Sciences#19
  26. #25Veterinary#16

Standing is the percentile of world rank within each field, 2022-now; the printed number is the rank itself. A dash means the field is too small there to rank. How sides are compared.

How has their output grown?

50k100k150kJapan144k in 2025Portugal31k in 20251990200020102020

Fractional works per year. The latest, partial year is left off.

Which publishes more research, Japan or Portugal?

Japan publishes 4.3× as much research as Portugal in 2022-now (558k against 129k fractional works).

Whose research has more impact, Japan or Portugal?

18.3% of Portugal's research reaches the world's top 10% most cited, against 10.7% for Japan.

Which institutions lead in each country?

The highest-ranked institutions on each side on research quality, 2022-now. The percentage is each institution's own top-10% rate: the share of its works that are among the world's 10% most cited for their field and year. Every figure stands alone, so they do not add up to 100%.

Japan

  1. 1The University of Tokyo15.7% top 10% · 25k works
  2. 2Kyoto University15.1% top 10% · 15k works
  3. 3The University of Osaka12.4% top 10% · 13k works
  4. 4Tohoku University13.9% top 10% · 13k works
  5. 5Nagoya University13.0% top 10% · 9.7k works
  6. 6Kyushu University13.0% top 10% · 11k works

Portugal

  1. 1Universidade do Porto21.1% top 10% · 11k works
  2. 2University of Lisbon22.3% top 10% · 13k works
  3. 3University of Coimbra19.6% top 10% · 8.7k works
  4. 4University of Minho20.9% top 10% · 7.3k works
  5. 5Universidade Nova de Lisboa20.4% top 10% · 6k works
  6. 6University of Aveiro21.0% top 10% · 6.7k works

The number is the rank inside the country. The track on each row is the top-10% rate; the tick is the average of all institutions, 16.5% (why not 10%): teal above it, red below. The ranking is the quality score, which compares the rate with what each institution's own topics predict and adds a small reward for size, so the rates do not fall in order.

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