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Ghana vs Sri Lanka

On research quality in 2022-now, Ghana ranks #58 in the world and Sri Lanka #96, of 189 countries. Ghana stands higher in 19 of the 20 fields both publish in, Sri Lanka in 1.

Research profiles alike: 0.80very similar shapes of research, whatever their size. How it is measured

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Ghana

World rank, 2022-now
#58
#68 all time
Works, 2022-now
27k
fractional
Top-10% rate
10.8%
share of its work among the world's most cited
Open access
65%
of its works free to read

Strongest relative focus: Library and Information Sciences, Horticulture, Research and Theory.

Sri Lanka

World rank, 2022-now
#96
#99 all time
Works, 2022-now
21k
fractional
Top-10% rate
5.9%
share of its work among the world's most cited
Open access
60%
of its works free to read

Strongest relative focus: Archeology, Space and Planetary Science, Paleontology.

Who leads, measure by measure?

Ghana leads on 8 of 9 measures: research quality, excellence for its fields, output, top-10% rate, citations per work, open access, international co-authorship and growth. Sri Lanka leads on none. The two are level on institutions in the world top 100.

Ghana 81 level0 Sri Lanka
  1. #58Research qualityworld rank of 189 countries, 2022-now#96
  2. 1.00×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.52×
  3. 27kOutputfractional works, 2022-now21k
  4. 10.8%Top-10% rateshare of its works among the world's most cited5.9%
  5. 12.1Citations per workall time, per fractional work9.3
  6. 0World top 100institutions it holds among the world's best 1000
  7. 65%Open accessof its works free to read, all time60%
  8. 33%Internationalof its works written with co-authors abroad, all time22%
  9. +42%Growthworks in 2022-25 against 2018-21; half a bar is no change+16%

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?

Ghana stands higher in 19 of 20 fields, Sri Lanka in 1. Ghana leads most in Economics, Econometrics and Finance (#41 against #97). Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Ghana 191 Sri Lanka
  1. #43Agricultural and Biological Sciences#87
  2. #55Arts and Humanities#85
  3. #61Biochemistry, Genetics and Molecular Biology#84
  4. #46Business, Management and Accounting#90
  5. -Chemistry#59
  6. #62Computer Science#90
  7. #45Decision Sciences#67
  8. #58Earth and Planetary Sciences#60
  9. #41Economics, Econometrics and Finance#97
  10. #57Energy-
  11. #72Engineering#82
  12. #52Environmental Science#82
  13. #42Health Professions#90
  14. #40Immunology and Microbiology-
  15. #70Materials Science#80
  16. #60Mathematics-
  17. #58Medicine#124
  18. #40Nursing-
  19. #58Psychology#78
  20. #59Social Sciences#101

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 Ghana rankSri Lanka rank Ghana top 10%Sri Lanka top 10% Ghana worksSri Lanka works
Agricultural and Biological Sciences #43 #87 11.0% 7.2% 2.3k 1.7k
Arts and Humanities #55 #85 11.5% 10.2% 746 808
Biochemistry, Genetics and Molecular Biology #61 #84 9.3% 6.2% 637 787
Business, Management and Accounting #46 #90 12.9% 4.9% 2.3k 1.3k
Chemistry - #59 - 8.2% - 224
Computer Science #62 #90 10.8% 4.8% 1.4k 1.8k
Decision Sciences #45 #67 9.5% 4.3% 458 404
Earth and Planetary Sciences #58 #60 11.4% 7.7% 207 463
Economics, Econometrics and Finance #41 #97 13.1% 5.6% 1.6k 678
Energy #57 - 9.8% - 235 -
Engineering #72 #82 8.0% 6.0% 1.7k 2.3k
Environmental Science #52 #82 9.1% 6.2% 1.9k 1.6k
Health Professions #42 #90 13.2% 5.4% 1.1k 624
Immunology and Microbiology #40 - 12.1% - 295 -
Materials Science #70 #80 7.5% 6.7% 206 428
Mathematics #60 - 11.1% - 277 -
Medicine #58 #124 10.1% 4.3% 4.3k 3.8k
Nursing #40 - 11.6% - 396 -
Psychology #58 #78 8.7% 4.7% 1k 714
Social Sciences #59 #101 11.6% 7.2% 5k 2.4k

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.

Ghana

▲ 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. Epidemiology1,614▲ 1.30×136 topics
  2. Sustainability1,476▲ 1.93×109 topics
  3. Climate Change1,179▲ 1.39×111 topics
  4. Globalization1,054▲ 1.72×132 topics
  5. Environmental Impact932▲ 1.75×67 topics
  6. Renewable Energy815▲ 1.80×53 topics
  7. Sustainable Development808▲ 1.65×89 topics
  8. Education786▲ 1.46×101 topics
  9. Economic Growth786▲ 3.1×34 topics
  10. Social Capital700▲ 4.3×21 topics
  11. Public Health690▲ 1.52×65 topics
  12. Mental Health661▲ 1.48×43 topics
  13. Risk Management650▲ 4.4×18 topics
  14. Supply Chain Management597▲ 2.1×26 topics
  15. Maternal Mortality544▲ 7.8×5 topics
  16. Corporate Governance529▲ 2.3×27 topics
  17. Poverty Reduction517▲ 13×7 topics
  18. Consumer Behavior514▲ 2.6×18 topics
  19. Community Health Workers479▲ 17×2 topics
  20. Biodiversity Conservation456▲ 3.9×17 topics
  21. Health Inequalities456▲ 12×5 topics
  22. Urbanization456▲ 3.6×13 topics
  23. Child Development449▲ 3.5×8 topics
  24. Leadership447▲ 2.9×35 topics
  25. Socio-economic Factors435▲ 12×3 topics
  26. Child Mortality432▲ 19×1 topic
  27. Health Systems432▲ 19×1 topic
  28. Smallholder Farmers429▲ 6.5×6 topics
  29. Social Networks417▲ 4.9×13 topics
  30. Governance412▲ 4.0×15 topics
  31. Development397▲ 3.6×19 topics
  32. Sustainable Agriculture395▲ 4.1×15 topics
  33. Gender Inequality381▲ 8.8×6 topics
  34. Global Burden of Disease372▲ 4.8×4 topics
  35. Poverty Alleviation372▲ 12×3 topics
  36. Vulnerability370▲ 5.1×8 topics
  37. ICT305▲ 7.3×5 topics
  38. Maternal and Child Undernutrition305▲ 12×1 topic
  39. Water Sanitation Hygiene305▲ 12×1 topic
  40. Institutional Quality302▲ 9.2×3 topics

Sri Lanka

▲ 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. Machine Learning1,193▲ 1.47×96 topics
  2. Epidemiology1,177▲ 1.21×138 topics
  3. Deep Learning1,168▲ 1.39×85 topics
  4. Sustainability1,018▲ 1.71×114 topics
  5. Climate Change964▲ 1.45×116 topics
  6. Environmental Impact722▲ 1.74×68 topics
  7. Globalization519◆ 1.08×127 topics
  8. Supply Chain Management468▲ 2.1×24 topics
  9. COVID-19467▲ 1.48×29 topics
  10. Neural Networks460▲ 1.22×40 topics
  11. Remote Sensing423▲ 1.42×36 topics
  12. Public Health409◆ 1.15×60 topics
  13. Renewable Energy399◆ 1.13×55 topics
  14. Antioxidant389▲ 2.3×51 topics
  15. Consumer Behavior368▲ 2.4×18 topics
  16. Risk Management365▲ 3.1×20 topics
  17. Pandemic361▲ 1.49×13 topics
  18. Healthcare336▲ 1.21×36 topics
  19. Economic Growth310▲ 1.56×35 topics
  20. Antioxidant Activity293▲ 1.93×31 topics
  21. Social Capital292▲ 2.3×20 topics
  22. Convolutional Neural Networks282▲ 1.59×14 topics
  23. Ecosystem Services274▲ 2.9×14 topics
  24. Genetic Diversity269▲ 2.5×22 topics
  25. Digital Transformation249▲ 1.89×23 topics
  26. Environmental Monitoring224▲ 2.4×15 topics
  27. Vaccine Development223▲ 3.6×11 topics
  28. Recycling221▲ 2.4×10 topics
  29. Waste Management217▲ 2.2×11 topics
  30. Intersectionality203▲ 4.4×13 topics
  31. Social Inequality201▲ 3.1×13 topics
  32. Antimicrobial200▲ 2.9×13 topics
  33. Agricultural Origins190▲ 24×1 topic
  34. Radiocarbon Dating190▲ 24×1 topic
  35. African Diaspora177▲ 19×4 topics
  36. Archaeology of Resistance174▲ 79×1 topic
  37. Black Feminist Theory174▲ 79×1 topic
  38. Food Supply Chain159▲ 5.8×2 topics
  39. business impact135▲ 6.2×1 topic
  40. economic effects135▲ 6.2×1 topic

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?

Ghana has out-published Sri Lanka every year since 2022, when it overtook it.

still counting2.5k5k7.5kGhana7,317 in 2025Sri Lanka6,113 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 counting0.050%0.10%0.15%Ghana0.12% in 2025Sri Lanka0.10% 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%Ghana11.1% in 2025Sri Lanka6.4% 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.

Ghana 05 level0 Sri Lanka
  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, Ghana or Sri Lanka?

Ghana publishes 1.3× as much research as Sri Lanka in 2022-now (27k against 21k fractional works).

Whose research has more impact, Ghana or Sri Lanka?

10.8% of Ghana's research reaches the world's top 10% most cited, against 5.9% for Sri Lanka.

Is Ghana or Sri Lanka growing faster?

Output in 2022-25 was +42% against 2018-21 for Ghana, and +16% for Sri Lanka.

Which has more open access research, Ghana or Sri Lanka?

65% of Ghana's research is free to read, against 60% of Sri Lanka's.

Which has more world-class institutions, Ghana or Sri Lanka?

Ghana holds 0 of the world's top 100 research institutions and Sri Lanka 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%.

Ghana

  1. 1University of Ghana11.0% top 10% · 5.3k works
  2. 2University of Cape Coast12.8% top 10% · 2.8k works
  3. 3Kwame Nkrumah University of Science and Technology10.8% top 10% · 4.5k works
  4. 4University for Development Studies11.1% top 10% · 1.9k works
  5. 5University of Education, Winneba8.0% top 10% · 1.4k works
  6. 6Takoradi Technical University13.8% top 10% · 404 works

Sri Lanka

  1. 1University of Moratuwa5.1% top 10% · 2.2k works
  2. 2University of Sri Jayewardenepura5.5% top 10% · 1.9k works
  3. 3Department of Archaeology13.1% top 10% · 1.1k works
  4. 4University of Jaffna9.1% top 10% · 746 works
  5. 5University of Peradeniya5.7% top 10% · 1.9k works
  6. 6General Sir John Kotelawala Defence University3.9% top 10% · 569 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.

Ghana

  1. 1 Richard Gyan Aboagye #22,347 worldwide 39k citations · 250 works
  2. 2 Emmanuel Joel Aikins Abakah #27,882 worldwide 4.7k citations · 132 works
  3. 3 Martin Amogre Ayanore #33,207 worldwide 54k citations · 181 works
  4. 4 Robert Kokou Dowou #33,244 worldwide 25k citations · 109 works
  5. 5 Hubert Amu #37,771 worldwide 49k citations · 190 works

Sri Lanka

  1. 1 Samath Dhamminda Dharmaratne #11,594 worldwide 239k citations · 254 works
  2. 2 Meththika Suharshini Vithanage #12,535 worldwide 34k citations · 518 works
  3. 3 Nuwan Darshana Wickramasinghe #21,611 worldwide 40k citations · 179 works
  4. 4 Anushka Upamali Rajapaksha #43,312 worldwide 13k citations · 136 works
  5. 5 Devarajan Rathish #81,508 worldwide 12k citations · 102 works