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Nigeria vs Réunion

On research quality in 2022-now, Réunion ranks #99 in the world and Nigeria #101, of 189 countries. Nigeria stands higher in 25 of the 26 fields both publish in, Réunion in 1.

Research profiles alike: 0.37somewhat alike shapes of research, whatever their size. How it is measured

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Nigeria

World rank, 2022-now
#101
#104 all time
Works, 2022-now
134k
fractional
Top-10% rate
4.9%
share of its work among the world's most cited
Open access
70%
of its works free to read

Strongest relative focus: Library and Information Sciences, Drug Discovery, Chemical Health and Safety.

Réunion

World rank, 2022-now
#99
#96 all time
Works, 2022-now
1.4k
fractional
Top-10% rate
6.7%
share of its work among the world's most cited
Open access
48%
of its works free to read

Strongest relative focus: Linguistics and Language, Ecology, Evolution, Behavior and Systematics, Horticulture.

Who leads, measure by measure?

Réunion leads on 6 of 9 measures: research quality, excellence for its fields, top-10% rate, citations per work, international co-authorship and growth. Nigeria leads on 2 of 9 measures: output and open access. The two are level on institutions in the world top 100.

Nigeria 21 level6 Réunion
  1. #101Research qualityworld rank of 189 countries, 2022-now#99
  2. 0.52×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected1.00×
  3. 134kOutputfractional works, 2022-now1.4k
  4. 4.9%Top-10% rateshare of its works among the world's most cited6.7%
  5. 7.4Citations per workall time, per fractional work10.5
  6. 0World top 100institutions it holds among the world's best 1000
  7. 70%Open accessof its works free to read, all time48%
  8. 16%Internationalof its works written with co-authors abroad, all time42%
  9. +22%Growthworks in 2022-25 against 2018-21; half a bar is no change+49%

A rank is drawn as its standing: the longer the bar, the nearer the top. Anything else is drawn against the larger of the two, and two values a hair apart are called level. Quality, excellence and the top-10% rate are explained in the methodology.

Who leads in each field?

Nigeria stands higher in 25 of 26 fields, Réunion in 1. Réunion leads most in Social Sciences (#100 against #113). Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Nigeria 251 Réunion
  1. #103Agricultural and Biological Sciences-
  2. #80Arts and Humanities-
  3. #93Biochemistry, Genetics and Molecular Biology-
  4. #92Business, Management and Accounting-
  5. #42Chemical Engineering-
  6. #63Chemistry-
  7. #112Computer Science-
  8. #70Decision Sciences-
  9. #60Dentistry-
  10. #66Earth and Planetary Sciences-
  11. #79Economics, Econometrics and Finance-
  12. #71Energy-
  13. #96Engineering-
  14. #105Environmental Science-
  15. #85Health Professions-
  16. #59Immunology and Microbiology-
  17. #74Materials Science-
  18. #75Mathematics-
  19. #84Medicine-
  20. #65Neuroscience-
  21. #59Nursing-
  22. #43Pharmacology, Toxicology and Pharmaceutics-
  23. #74Physics and Astronomy-
  24. #95Psychology-
  25. #113Social Sciences#100
  26. #29Veterinary-

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.

The numbers behind each field

Click a heading to sort. The side that does better in a pair of columns is shaded: a lower rank, a higher rate, more works.

Field Nigeria rankRéunion rank Nigeria top 10%Réunion top 10% Nigeria worksRéunion works
Agricultural and Biological Sciences #103 - 4.0% - 14k -
Arts and Humanities #80 - 8.7% - 2.8k -
Biochemistry, Genetics and Molecular Biology #93 - 4.5% - 4.6k -
Business, Management and Accounting #92 - 4.9% - 7.7k -
Chemical Engineering #42 - 6.5% - 200 -
Chemistry #63 - 6.0% - 1.6k -
Computer Science #112 - 5.7% - 8k -
Decision Sciences #70 - 4.8% - 2k -
Dentistry #60 - 3.5% - 409 -
Earth and Planetary Sciences #66 - 5.8% - 1.5k -
Economics, Econometrics and Finance #79 - 5.0% - 6.5k -
Energy #71 - 4.2% - 1.7k -
Engineering #96 - 4.9% - 14k -
Environmental Science #105 - 4.4% - 10k -
Health Professions #85 - 6.1% - 4.3k -
Immunology and Microbiology #59 - 5.0% - 1.3k -
Materials Science #74 - 6.6% - 2.8k -
Mathematics #75 - 6.3% - 1.9k -
Medicine #84 - 4.1% - 21k -
Neuroscience #65 - 5.2% - 739 -
Nursing #59 - 3.3% - 1.9k -
Pharmacology, Toxicology and Pharmaceutics #43 - 3.3% - 1.3k -
Physics and Astronomy #74 - 4.6% - 673 -
Psychology #95 - 4.4% - 3.5k -
Social Sciences #113 #100 5.7% 5.4% 20k 478
Veterinary #29 - 2.6% - 255 -

What is each known for?

The keywords that describe each side's research, by fractional works in 2022-now and weighted toward what it does more of than the world.

Nigeria

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Epidemiology6,992◆ 1.09×140 topics
  2. Sustainability6,209▲ 1.58×131 topics
  3. Environmental Impact6,008▲ 2.2×72 topics
  4. Education5,751▲ 2.1×146 topics
  5. Machine Learning5,438◆ 1.02×97 topics
  6. Sustainable Development5,257▲ 2.1×108 topics
  7. Globalization4,985▲ 1.58×173 topics
  8. Climate Change4,966◆ 1.14×127 topics
  9. Renewable Energy4,353▲ 1.87×61 topics
  10. Economic Growth4,324▲ 3.3×38 topics
  11. Oxidative Stress3,687▲ 1.39×63 topics
  12. Antioxidant3,412▲ 3.1×51 topics
  13. Development3,202▲ 5.6×23 topics
  14. Gender Equality3,084▲ 6.8×18 topics
  15. Corporate Governance2,913▲ 2.5×32 topics
  16. Risk Management2,754▲ 3.6×20 topics
  17. Curriculum Development2,746▲ 2.5×20 topics
  18. Antioxidant Activity2,743▲ 2.7×32 topics
  19. Nigeria2,734▲ 79×3 topics
  20. Information Technology2,674▲ 3.5×32 topics
  21. Medicinal Plants2,492▲ 4.0×21 topics
  22. Social Capital2,408▲ 2.9×20 topics
  23. Genetic Diversity2,394▲ 3.4×22 topics
  24. Antioxidants2,137▲ 3.0×17 topics
  25. Teacher Education2,125▲ 10×8 topics
  26. Toxicity2,107▲ 3.0×20 topics
  27. Governance2,098▲ 4.0×19 topics
  28. Quality Assurance2,067▲ 7.6×9 topics
  29. Fiscal Policy2,016▲ 6.2×11 topics
  30. Bioactive Compounds1,971▲ 4.9×15 topics
  31. Youth Unemployment1,884▲ 99×1 topic
  32. ICT1,763▲ 8.2×5 topics
  33. Institutional Quality1,723▲ 10×3 topics
  34. Inequality1,694▲ 4.6×18 topics
  35. Smallholder Farmers1,669▲ 4.9×6 topics
  36. Knowledge Economy1,451▲ 8.3×11 topics
  37. Mobile Phones1,415▲ 19×3 topics
  38. Inclusive Development1,410▲ 20×2 topics
  39. financial access1,397▲ 22×1 topic
  40. gender inclusion1,397▲ 22×1 topic

Réunion

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Climate Change100▲ 2.2×81 topics
  2. Globalization94▲ 2.9×75 topics
  3. Migration90▲ 16×17 topics
  4. Identity89▲ 7.5×46 topics
  5. Epidemiology84▲ 1.29×119 topics
  6. Biogeography81▲ 18×19 topics
  7. Colonialism80▲ 10×31 topics
  8. Sociolinguistics76▲ 25×8 topics
  9. Social Justice75▲ 7.7×20 topics
  10. Gender71▲ 8.0×34 topics
  11. Cultural Diversity70▲ 19×10 topics
  12. Public Policy62▲ 7.9×17 topics
  13. Public Health60▲ 2.5×41 topics
  14. Multilingualism60▲ 23×5 topics
  15. Ethnicity59▲ 9.6×12 topics
  16. Sustainable Development58▲ 2.3×32 topics
  17. Community Engagement58▲ 11×11 topics
  18. Phylogeny56▲ 20×15 topics
  19. Territorial Governance55▲ 29×4 topics
  20. Gender Studies54▲ 22×11 topics
  21. Local Development54▲ 31×2 topics
  22. Healthcare Access49▲ 11×10 topics
  23. Politics48▲ 11×17 topics
  24. Culture44▲ 5.1×21 topics
  25. Social Movements43▲ 8.9×21 topics
  26. Religion40▲ 5.3×20 topics
  27. Citizen Participation39▲ 21×1 topic
  28. Environmental Participation39▲ 34×1 topic
  29. Nationalism38▲ 5.1×19 topics
  30. Educational Policies37▲ 21×2 topics
  31. Professional Practices37▲ 63×1 topic
  32. Public Action37▲ 63×1 topic
  33. Sociological Analysis37▲ 40×2 topics
  34. Discrimination35▲ 10×5 topics
  35. Social Inequality34▲ 7.8×4 topics
  36. French Territories34▲ 211×1 topic
  37. Migrant Workers34▲ 211×1 topic
  38. Intercultural Communication33▲ 44×2 topics
  39. Language Policy33▲ 14×4 topics
  40. Taxonomy31▲ 13×13 topics

Size is fractional works in the topics tagged with each word; colour is the word's share of the side's work against its share of the world's. Each word links to the topic it comes from most.

How has their output grown?

Nigeria has out-published Réunion every year since 1980.

still counting20k40kNigeria40k in 2025Réunion340 in 20251990200020102020

Fractional works per year.

Their share of all research

Growing output can still be a shrinking share, because all of science grows. Each line is a side as a percentage of every work published that year.

still counting0.25%0.50%0.75%Nigeria0.67% in 2025Réunion0.0058% in 202519801990200020102020

Fractional works over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

The share of each side's works, year by year, that reached the world's 10% most cited for their field and year. The average of all institutions is 10.0% (why not 10%).

still counting5%10%15%Réunion7.8% in 2025Nigeria4.6% in 2025200020102020

A year with under 1% of the side's peak output is left out: a rate over a handful of papers says nothing. The latest years are still being cited.

Who holds more of the world's best institutions?

A country's average quality and the number of institutions it holds at the very top can disagree, and both are worth knowing. The counts are nested: an institution in the top 50 is also in the top 100.

Nigeria 05 level0 Réunion
  1. 0In the world top 500
  2. 0In the top 1000
  3. 0In the top 5000
  4. 0In the top 1,0000
  5. #51Elite capacityrank among 204 countries#51

Institutions ranked on research quality, 2022-now. Elite capacity counts a country's institutions by their worldwide rank, weighted so a place at #1 counts for more than one at #480.

Which publishes more research, Nigeria or Réunion?

Nigeria publishes 96.5× as much research as Réunion in 2022-now (134k against 1.4k fractional works).

Whose research has more impact, Nigeria or Réunion?

6.7% of Réunion's research reaches the world's top 10% most cited, against 4.9% for Nigeria.

Is Nigeria or Réunion growing faster?

Output in 2022-25 was +49% against 2018-21 for Réunion, and +22% for Nigeria.

Which has more open access research, Nigeria or Réunion?

70% of Nigeria's research is free to read, against 48% of Réunion's.

Which has more world-class institutions, Nigeria or Réunion?

Nigeria holds 0 of the world's top 100 research institutions and Réunion 0; in the top 1,000 it is 0 against 0.

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%.

Nigeria

  1. 1Covenant University7.9% top 10% · 1.6k works
  2. 2Lead City University4.8% top 10% · 1k works
  3. 3Adekunle Ajasin University5.6% top 10% · 1k works
  4. 4Redeemer's University8.4% top 10% · 599 works
  5. 5University of Lagos5.2% top 10% · 3.6k works
  6. 6University of Ibadan6.0% top 10% · 5.8k works

Réunion

  1. 1University of Reunion Island6.8% top 10% · 277 works
  2. 2Conseil Régional de La Réunion9.9% top 10% · 61 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, 10.0% (how it is set): 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.

Who are the top researchers on each side?

The most cited researchers on each side, among those ranked.

Nigeria

  1. 1 Michael Ekholuenetale #7,006 worldwide 69k citations · 215 works
  2. 2 Olayinka Stephen Ilesanmi #10,324 worldwide 161k citations · 355 works
  3. 3 Mu’awiyyah Babale Sufiyan #10,737 worldwide 123k citations · 106 works
  4. 4 Oye Gureje #14,357 worldwide 94k citations · 694 works
  5. 5 Aminu Shittu #16,229 worldwide 34k citations · 108 works

Réunion

  1. 1 Riccardo Rodolfo‐Metalpa #183,527 worldwide 6.3k citations · 141 works
  2. 2 Fanny Houlbrèque #324,354 worldwide 4.6k citations · 113 works
  3. 3 Marie‐Paule Gonthier #329,865 worldwide 4.4k citations · 57 works
  4. 4 Silvia Iacobelli #550,826 worldwide 6.2k citations · 158 works
  5. 5 Philippe Lauret #572,523 worldwide 3.9k citations · 103 works