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Dive into the research topics where Mohammed Umar is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
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Research output
- 4 Article
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Rethinking financial incentive for whistleblowing in high corruption contexts: lessons from Nigeria
Umar, M. A., Olowo, R. & Oyelere, P. B. O., Sept 2025, In: Journal of Financial Crime. 32, 5, p. 1136-1151 16 p.Research output: Contribution to journal › Article › peer-review
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Effects of royalty payment on petroleum profit tax evasion: evidence from the Nigerian non-renewable energy sector
Ya’u, A., Umar, M. A., Saad, N., Rengasamy, D., Mustapha, U. A. & Bala, H., 2024, (Accepted/In press) In: Energy Systems.Research output: Contribution to journal › Article › peer-review
Open Access -
Effects of some macroeconomics variables on estimated tax evasion: evidence from Sub-Saharan Africa
Ya'u, A., Umar, M. A., Yunusa, N. & Rengasamy, D., Oct 23 2024, In: African Journal of Economic and Management Studies. 15, 4, p. 587-601 15 p.Research output: Contribution to journal › Article › peer-review
3 Link opens in a new tab Citations (Scopus) -
Issues in teaching and learning accounting among students who use English as a second language
Umar, M. A. & Olowo, R., 2024, In: Accounting Education. 33, 4, p. 473-496 24 p.Research output: Contribution to journal › Article › peer-review
4 Link opens in a new tab Citations (Scopus)