Skip to content
akaturk Academic measurement
Sign in Sign up

Academician

OJONUGWA USMAN

Doktor Öğretim Üyesi

İstanbul Ticaret Üniversitesi İşletme Fakültesi İktisat Bölümü

Research topics OpenAlex
  1. Ana Dal Sosyal-Beşeri ve İdari Bilimler Temel Alanı
  2. Yan Dal Makro İktisat
Keywords YÖKSİS
Articles 57 YÖKSİS 57 · OpenAlex 0 Total citations 1,742 h-index 24 · OpenAlex Q1 articles 49 Scopus · WoS Q1 37 Top 2% world rank #180,679 Stanford / Elsevier 2026 Best field rank #38 / 30,171 Main field · top 0.1% Co-authors 71 13 Turkish institutions

Citation impact

OpenAlex YÖKSİS articles matched in OpenAlex: 53 + YÖKSİS · co-author record: 10
h-index 24 Percentile in Türkiye: 99 #4 of 204 at their university by h-index
i10-index
41
Total citations
1,742
Top 2.1% in Türkiye
Per article
27.7
FWCI
10.98
1.00 = world average
World top 1%
10
World top 10%
51

Most cited articles

  1. Role of Non-Renewable Energy Efficiency and Renewable Energy in Driving Environmental Sustainability in India: Evidence from the Load Capacity Factor Hypothesis 2023 world top 1% 170 citations
  2. Assessing the impact of resource efficiency, renewable energy R&D spending, and green technologies on environmental sustainability in Germany: Evidence from a Wavelet Quantile-on-Quantile Regression 2024 world top 1% 141 citations
  3. Analysing the nexus between clean energy expansion, natural resource extraction, and load capacity factor in China: a step towards achieving COP27 targets 2024 world top 1% 88 citations
How is this computed?

h-index and citations are computed from the citation counts of this academic’s YÖKSİS articles matched in OpenAlex (not Google Scholar, WoS or Scopus). Unmatched articles are not included. 10 articles (36 citations) tagged with this academic’s YÖK author id in co-authors’ YÖKSİS records count only towards citations, h-index and i10; article counts, percentiles and rankings use their own YÖKSİS list. h-index on the OpenAlex author profile: 40.

World’s top 2% scientists

Stanford / Elsevier · 2026
World rank
180,679
career list
2025 rank
21,330
2025 list
Composite c-score
3.26
excluding self-citations
h-index
31
hm 15.4
Sub-field rank
1603
Environmental Sciences

The 2026 list (v9) prepared by Stanford University and Elsevier from Scopus data; indicators exclude self-citations. See the Türkiye list →

Field ranking

YÖKSİS ?
Keyword rankings 3

Collaboration network

From the author lists of YÖKSİS publication records. Duplicate records of a work count once; institutions are co-authors’ current YÖKSİS affiliations.

Co-authors
71
With an akaturk profile
23
Turkish institutions
13
Co-authored works
%98

Academic co-authors 23

  1. OKTAY ÖZKAN Profesör · Tokat Gaziosmanpaşa Üniversitesi 24
  2. ANDREW ADEWALE ALOLA Doktor Öğretim Üyesi · İstanbul Nişantaşı Üniversitesi 13
  3. MEHMET BALCILAR Profesör · Ostim Teknik Üniversitesi 9
  4. FESTUS VICTOR BEKUN Doçent · İstanbul Gelişim Üniversitesi 3
  5. GODWIN OLUSEYE OLASEHINDE WILLIAMS Doktor Öğretim Üyesi · İstanbul Ticaret Üniversitesi same university 3
  6. ALİ ÇELİK Doçent · İstanbul Gelişim Üniversitesi 2
  7. HASAN GÜNGÖR Doçent · Yozgat Bozok Üniversitesi 2
  8. AYBEN KOY Profesör · Fenerbahçe Üniversitesi 1
  9. AYFER USTABAŞ Doçent · İstinye Üniversitesi 1
  10. BAHAR ERDAL Doçent · Ostim Teknik Üniversitesi 1
Show all (23)
  1. BLEND IBRAHIM Doktor Öğretim Üyesi · Balıkesir Üniversitesi 1
  2. BÜŞRA AĞAN ÇELİK Doçent · Ostim Teknik Üniversitesi 1
  3. CİHAT KÖKSAL Doçent · İstanbul Ticaret Üniversitesi same university 1
  4. ELMA SATROVIC Profesör · Hasan Kalyoncu Üniversitesi 1
  5. EMRAH SOFUOĞLU Doçent · Kırşehir Ahi Evran Üniversitesi 1
  6. IFEDOLAPO OLABISI OLANIPEKUN Doktor Öğretim Üyesi · İstanbul Gelişim Üniversitesi 1
  7. MURAT ALİ YÜLEK Profesör · Ostim Teknik Üniversitesi 1
  8. MUSTAFA NECATİ ÇOBAN Doçent · Tokat Gaziosmanpaşa Üniversitesi 1
  9. OKTAY ÖZKAN Doçent · Niğde Ömer Halisdemir Üniversitesi 1
  10. UJU VIOLET ALOLA Doktor Öğretim Üyesi · İstanbul Beykent Üniversitesi 1
  11. UĞUR KORKUT PATA Doçent · Hatay Mustafa Kemal Üniversitesi 1
  12. ÖZGÜR ÖMER ERSİN Profesör · İstanbul Ticaret Üniversitesi same university 1
  13. İLHAN ÖZTÜRK Profesör · İstanbul Nişantaşı Üniversitesi 1

National collaboration 13 institutions

Within own university5 joint works · İstanbul Ticaret Üniversitesi

  1. Tokat Gaziosmanpaşa Üniversitesi 24 works · 2 academics
  2. İstanbul Nişantaşı Üniversitesi 14 works · 2 academics
  3. Ostim Teknik Üniversitesi 9 works · 4 academics
  4. İstanbul Gelişim Üniversitesi 6 works · 3 academics
  5. Yozgat Bozok Üniversitesi 2 works · 1 academics
  6. Balıkesir Üniversitesi 1 works · 1 academics
  7. Fenerbahçe Üniversitesi 1 works · 1 academics
  8. Hasan Kalyoncu Üniversitesi 1 works · 1 academics
  9. Hatay Mustafa Kemal Üniversitesi 1 works · 1 academics
  10. Kırşehir Ahi Evran Üniversitesi 1 works · 1 academics
Show all (13)
  1. Niğde Ömer Halisdemir Üniversitesi 1 works · 1 academics
  2. İstanbul Beykent Üniversitesi 1 works · 1 academics
  3. İstinye Üniversitesi 1 works · 1 academics

Other co-authors (incl. international) 48

George Ike 8TOMİWA SUNDAY ADEBAYO 5Paul Terhemba Iorember 4Babatunde Sunday Eweade 3Wafa Ghardallou 3Abdulkadir Abdulrashid Rafindadi 2Alhassan Abdulkareem 2Aliyu Buhari Isah 2BRUCE IORTİLE IORMOM 2Chinazaekpere Nwani 2David Roubaud 2GİZEM UZUNER 2IBRAHIM ADESHOLA 2Manuel A. Zambrano-Monserrate 2Mark Wohar 2Olasehinde-Williams Godwin 2Seyi Saints Akadiri 2Adikpo Janet AverAgoyi MaryAnthony Ladis KombaAwosusi Abraham AyobamijiBRİGHT AKWASİ GYAMFİBusra AganChukwuemeka EchebiriGazi Murat DumanGimba Obadiah JonathanGylych JelilovHASAN GÜNGÖRHephzibah Onyeje ObekpaHÜSEYİN ÖZDEŞERIfedolapo O. OlanipekunJunfeng JiangKingsley Ikechukwu OkereMEHDİ SERAJMICHAEL APPIAHMahmood AhmadMaryam Abu GoodmanMonday UsmanNargiza AlymkulovaOlanipekun Ifedolapo

Show all (48)

Oluchi C. ObieriRasheed O. AlaoRoselyn Afor HarunaSaheed AlaoShahid AliSolomon GbakaYunqian BaiZahoor Ahmed

Authors without an akaturk profile (international researchers, retired or former academics, students, clinicians) are grouped by name spelling; short forms such as “Gulluce M.” join the single full name they match.

Indexes and citation percentiles

?
TR Index 0 articles
OpenAlex citation percentile
Top 1%10
Top 10%47
Avg · n 54 %94.4
Other counts

Scopus (SJR)

  • YÖKSİS rows 58

WoS (JCR)

  • YÖKSİS rows 56

Articles

Articles with YÖKSİS and OpenAlex source split; narrow by quartile or TR Index.

57articles

Journals with publications

35 journals

Narrow down

Scopus (SJR)
Q149 Q25 Q33 Q40
WoS (JCR)
Q137 Q215 Q33 Q40
TR Index
0articles

Article list

  1. 2025 Spillover network of tourism stocks, metaverse, artificial intelligence, and traditional assets: Do oil-related and volatility shocks matter? Tourism Economics DOI 10.1177/13548166251353545 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 91.7%
  2. 2025 Is AI cable news-based economic policy uncertainty predicting travel and leisure stock returns in the USA, EU, and China? Current Issues in Tourism DOI 10.1080/13683500.2024.2440089 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 90.9%
  3. 2025 US Economic Policy Uncertainty and the Exchange Market Pressure of Large Emerging-Market Economies: Evidence from GETS-VAR and Bayesian Quantile Regression Methods International Journal of Finance & Economics DOI 10.1002/ijfe.70057 YÖKSİS SJR Q2 JCR Q1 OpenAlex 86.8%
  4. 2025 Analyzing the response of energy and major financial assets to global financial risks: a time-quantile analysis in a volatile global environment Finance Research Letters DOI 10.1016/j.frl.2025.108458 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 90.8%
  5. 2025 A global shift: How modern technologies are powering the energy transition in the face of climate change Journal of Environmental Management DOI 10.1016/j.jenvman.2025.125610 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 95.8%
  6. 2025 Fossil fuel efficiency as a pathway to decarbonisation and the role of international trade: A perspective of the LCC hypothesis Environment Development and Sustainability DOI 10.1007/s10668-025-06351-9 YÖKSİS SJR Q1 JCR Q2 OpenAlex top 10% OpenAlex 95.5%
  7. 2025 Role of fourth industrial revolution on dirty and clean energy under bearish, neutral and bullish market conditions: A quantile-on-quantile Granger causality approach Energy DOI 10.1016/j.energy.2025.135582 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 97.6%
  8. 2025 Drivers of eco-efficiency and the criticality of environmental policy stringency in OECD countries Journal of Cleaner Production DOI 10.1016/j.jclepro.2025.145157 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 98.7%
  9. 2025 Examining the asymmetric role of economic complexity, resource efficiency, and renewable energy on consumption-based CO2 emissions in China Energy DOI 10.1016/j.energy.2025.138269 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 98.5%
  10. 2025 The asymmetric effect of household and commercial energy efficiency on U.S. energy-related CO2 emissions Innovation and Green Development DOI 10.1016/j.igd.2025.100293 YÖKSİS SJR Q1 OpenAlex 62.9%
  11. 2024 Energy security-related risks and the quest to attain USA’s net-zero emissions targets by 2050: a dynamic ARDL simulations modeling approach Environmental Science and Pollution Research DOI 10.1007/s11356-024-32124-4 YÖKSİS SJR Q1 JCR Q1
  12. 2024 House price connectedness and consumer sentiment in an era of destabilizing macroeconomic conditions: Empirical evidence from Türkiye Borsa Istanbul Review DOI 10.1016/j.bir.2023.08.006 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 94.0%
  13. 2024 The time-frequency-quantile causal impact of Cable News-based Economic Policy Uncertainty on major assets returns Investment Analysts Journal DOI 10.1080/10293523.2024.2358589 YÖKSİS SJR Q3 JCR Q2 OpenAlex top 10% OpenAlex 95.8%
  14. 2024 Role of household energy efficiency in shaping policy directives toward clean electricity transition in the United States: A nonparametric multivariate QQR approach Sustainable Energy Technologies and Assessments DOI 10.1016/j.seta.2024.103741 2 YÖKSİS records YÖKSİS SJR Q1 JCR Q2 OpenAlex 77.7%
  15. 2024 Nonlinear network connectedness: Assessing financial risk transmission in MENA and influence of external financial conditions Emerging Markets Review DOI 10.1016/j.ememar.2024.101186 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 10% OpenAlex 97.3%
  16. 2024 MODELING THE ASYMMETRIC EFFECTS OF EXCHANGE RATE, FINANCIAL DEVELOPMENT, AND OIL PRICES ON ECONOMIC GROWTH Singapore Economic Review DOI 10.1142/S0217590823500595 YÖKSİS SJR Q3 JCR Q3
  17. 2024 Global liquidity effect of quantitative easing on emerging markets Empirical Economics DOI 10.1007/s00181-024-02625-9 YÖKSİS SJR Q1 JCR Q2
  18. 2024 Modelling the air pollution induced health effects of energy consumption across varied spaces in OECD countries: An asymmetric analysis Journal of Environmental Management DOI 10.1016/j.jenvman.2023.119550 YÖKSİS SJR Q1 JCR Q1
  19. 2024 Energy-related uncertainty shocks and inflation dynamics in the U.S: A multivariate quantile-on-quantile regression approach Structural Change and Economic Dynamics DOI 10.1016/j.strueco.2024.07.012 YÖKSİS SJR Q1 JCR Q1 OpenAlex top 1% OpenAlex 99.4%
  20. 2024 Analysing the nexus between clean energy expansion, natural resource extraction, and load capacity factor in China: a step towards achieving COP27 targets Environment, Development and Sustainability DOI 10.1007/s10668-023-04399-z YÖKSİS SJR Q1 JCR Q2 OpenAlex top 1% OpenAlex 99.9%

← Back to academicians