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Chad vs Niger

On research quality in 2022-now, Niger ranks #147 in the world and Chad #168, of 189 countries. Chad stands higher in 0 of the 2 fields both publish in, Niger in 2.

Research profiles alike: 0.86very similar shapes of research, whatever their size. How it is measured

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Chad

World rank, 2022-now
#168
#171 all time
Works, 2022-now
545
fractional
Top-10% rate
4.2%
share of its work among the world's most cited
Open access
79%
of its works free to read

Strongest relative focus: Forestry, Ecology, Evolution, Behavior and Systematics, Geochemistry and Petrology.

Niger

World rank, 2022-now
#147
#130 all time
Works, 2022-now
1.5k
fractional
Top-10% rate
4.0%
share of its work among the world's most cited
Open access
47%
of its works free to read

Strongest relative focus: Forestry, Medical Terminology, Library and Information Sciences.

Who leads, measure by measure?

Chad leads on 4 of 9 measures: excellence for its fields, open access, international co-authorship and growth. Niger leads on 3 of 9 measures: research quality, output and citations per work. The two are level on top-10% rate and institutions in the world top 100.

Chad 42 level3 Niger
  1. #168Research qualityworld rank of 189 countries, 2022-now#147
  2. 0.75×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.60×
  3. 545Outputfractional works, 2022-now1.5k
  4. 4.2%Top-10% rateshare of its works among the world's most cited4.0%
  5. 4.6Citations per workall time, per fractional work10.5
  6. 0World top 100institutions it holds among the world's best 1000
  7. 79%Open accessof its works free to read, all time47%
  8. 47%Internationalof its works written with co-authors abroad, all time36%
  9. +104%Growthworks in 2022-25 against 2018-21; half a bar is no change+29%

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?

Chad stands higher in 0 of 2 fields, Niger in 2. Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Chad 02 Niger
  1. -Agricultural and Biological Sciences#98
  2. -Medicine#120

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 Chad rankNiger rank Chad top 10%Niger top 10% Chad worksNiger works
Agricultural and Biological Sciences - #98 - 4.3% - 345
Medicine - #120 - 2.9% - 373

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.

Chad

▲ 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. Epidemiology62▲ 2.3×83 topics
  2. Climate Change50▲ 2.8×47 topics
  3. Sustainability43▲ 2.6×36 topics
  4. Smallholder Farmers39▲ 28×6 topics
  5. Adaptation31▲ 16×5 topics
  6. Diversity26▲ 22×4 topics
  7. Livestock Farming26▲ 65×2 topics
  8. Agroecology26▲ 27×2 topics
  9. Agricultural Development25▲ 25×2 topics
  10. Multifunctionality25▲ 81×1 topic
  11. Work Organization25▲ 97×1 topic
  12. Renewable Energy20▲ 2.0×22 topics
  13. Immune Response19▲ 5.0×13 topics
  14. Public Health19▲ 1.92×34 topics
  15. Treatment19▲ 2.3×27 topics
  16. Genetic Diversity19▲ 6.4×15 topics
  17. Sustainable Agriculture18▲ 8.5×9 topics
  18. Remote Sensing17▲ 2.1×15 topics
  19. Antioxidant16▲ 3.5×26 topics
  20. Nutritional Value15▲ 20×2 topics
  21. Climate Resilience15▲ 38×3 topics
  22. Diabetes15▲ 4.4×11 topics
  23. Global Burden15▲ 4.1×12 topics
  24. Biodiversity Conservation14▲ 5.4×8 topics
  25. Governance13▲ 5.9×7 topics
  26. Agroforestry12▲ 27×4 topics
  27. Health Benefits12▲ 5.3×10 topics
  28. Indigenous Fruits12▲ 77×1 topic
  29. Tree Domestication12▲ 77×1 topic
  30. Vaccine12▲ 4.3×9 topics
  31. Global Burden of Disease10▲ 6.3×2 topics
  32. Maternal Mortality10▲ 6.9×5 topics
  33. Maternal and Child Undernutrition10▲ 19×1 topic
  34. Water Sanitation Hygiene10▲ 19×1 topic
  35. GIS10▲ 19×3 topics
  36. Antiviral Therapy9▲ 14×3 topics
  37. Antiretroviral Therapy9▲ 7.9×6 topics
  38. Community Health Workers9▲ 14×2 topics
  39. Institutional Quality9▲ 12×2 topics
  40. Liver Disease8▲ 14×2 topics

Niger

▲ 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 Change186▲ 3.8×72 topics
  2. Epidemiology162▲ 2.3×109 topics
  3. Sustainability152▲ 3.5×52 topics
  4. Smallholder Farmers150▲ 40×6 topics
  5. Adaptation112▲ 21×7 topics
  6. Diversity92▲ 29×7 topics
  7. Livestock Farming91▲ 86×3 topics
  8. Agroecology91▲ 36×2 topics
  9. Agricultural Development89▲ 33×2 topics
  10. Multifunctionality89▲ 106×1 topic
  11. Work Organization89▲ 129×1 topic
  12. Sustainable Agriculture72▲ 13×9 topics
  13. Climate Resilience69▲ 64×3 topics
  14. Biodiversity Conservation66▲ 9.8×12 topics
  15. Genetic Diversity58▲ 7.5×19 topics
  16. Nutritional Value57▲ 28×3 topics
  17. Agroforestry55▲ 46×4 topics
  18. Public Health52▲ 2.0×48 topics
  19. Globalization52▲ 1.48×56 topics
  20. Rural Livelihoods51▲ 53×2 topics
  21. Indigenous Fruits50▲ 123×1 topic
  22. Tree Domestication50▲ 123×1 topic
  23. Environmental Impact50▲ 1.63×46 topics
  24. Remote Sensing42▲ 1.94×25 topics
  25. Vaccine40▲ 5.6×11 topics
  26. Nutritional Quality36▲ 28×4 topics
  27. Food Security34▲ 3.5×15 topics
  28. Drought Tolerance34▲ 14×8 topics
  29. Pathogenesis34▲ 3.7×19 topics
  30. Breeding28▲ 21×5 topics
  31. Vaccine Development28▲ 6.0×10 topics
  32. Maternal Mortality27▲ 6.8×5 topics
  33. Global Burden of Disease25▲ 5.5×4 topics
  34. Agricultural Sustainability22▲ 11×4 topics
  35. Marker Development22▲ 27×3 topics
  36. Maternal and Child Undernutrition22▲ 15×1 topic
  37. Water Sanitation Hygiene22▲ 15×1 topic
  38. Health Inequalities22▲ 9.9×3 topics
  39. Community Health Workers21▲ 13×2 topics
  40. Phytochemicals20▲ 10×5 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?

Niger has out-published Chad every year since 2018, when it overtook it.

still counting200400600Niger414 in 2025Chad151 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 counting0.0050%0.010%0.015%Niger0.0070% in 2025Chad0.0026% 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%Niger4.6% in 2025Chad3.9% 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.

Chad 05 level0 Niger
  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, Chad or Niger?

Niger publishes 2.8× as much research as Chad in 2022-now (1.5k against 545 fractional works).

Whose research has more impact, Chad or Niger?

4.2% of Chad's research reaches the world's top 10% most cited, against 4.0% for Niger.

Is Chad or Niger growing faster?

Output in 2022-25 was +104% against 2018-21 for Chad, and +29% for Niger.

Which has more open access research, Chad or Niger?

79% of Chad's research is free to read, against 47% of Niger's.

Which has more world-class institutions, Chad or Niger?

Chad holds 0 of the world's top 100 research institutions and Niger 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%.

Chad

  1. 1University of N'Djamena3.4% top 10% · 365 works

Niger

  1. 1Université Abdou Moumouni3.2% top 10% · 539 works
  2. 2Université de Maradi3.2% top 10% · 135 works
  3. 3National Hospital Niamey2.5% top 10% · 161 works
  4. 4Ministère de la Santé Publique5.7% top 10% · 91 works
  5. 5Université André Salifou2.7% top 10% · 95 works
  6. 6Institut National de la Recherche Agronomique du Niger6.5% top 10% · 110 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.

Chad

  1. 1 Andossa Likius #853,994 worldwide 4.6k citations · 80 works
  2. 2 Jean‐Claude Mousseuknadji Kouladoum #1,017,261 worldwide 387 citations · 27 works
  3. 3 Hassane Taïsso Mackaye #1,057,251 worldwide 3.5k citations · 61 works
  4. 4 Yodé Miangotar #1,646,455 worldwide 1.9k citations · 18 works
  5. 5 Hassan Taïsso Mackaye #1,834,244 worldwide 1.1k citations · 22 works

Niger

  1. 1 Amadou Garba #483,222 worldwide 5.2k citations · 160 works
  2. 2 Abdou Ali #737,227 worldwide 2.9k citations · 72 works
  3. 3 Amina Amadou Hamidou #897,228 worldwide 804 citations · 33 works
  4. 4 Mahamadou Bassirou Souleymane #1,126,005 worldwide 1.2k citations · 28 works
  5. 5 Ousmane Guindo #1,234,502 worldwide 1.2k citations · 79 works