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Dr. Sunday M. A. POSU holds PhD (Economics) from Obafemi Awolowo University, Ile-Ife,
after bagging M.Phil. (Economics) and M.Sc. (Economics) from University of Ibadan, Ibadan;
and B.Sc. (Hons) in Economics from Ogun State University (now Olabisi Onabanjo University),
Ago-Iwoye. He joined the academic profession as a Graduate Assistant in 1995 without a break
to date. Dr. Posu has published in reputable local and international journals. He has to his credit
thirty-one published journal articles, one book, six book chapters, three conference proceedings,
and three conference papers read.
He has special research interest in Environmental Economics as part of his specific contributions
to knowledge and the literature on environmental economics. One study shed light on the
implications of the sign of the proxy used to measure pollution and its effect on the shape and
interpretation of the resulting EKC shape. Increase in environmental degradation is a negative
measure of pollution while environmental quality is a positive one. With environmental
degradation, the study found U-shaped EKC for Nigeria but inverted U-shaped EKC when
pollution level was measured and interpreted by environmental quality. A study that investigated
the veracity of the pollution haven hypothesis (PHH) failed to validate PHH in Nigeria. Increase
in CO 2 emissions discouraged FDI. The study concluded that factors different from weak
environmental regulations propelled FDI inflows in Nigeria but that FDI could increase with
stringent environmental laws. A study observed that rebasing GDP, as the case was in 2014 in
Nigeria, does not imply increase in the volume and real value of national output. The study found
U-shaped and N-shaped EKC for Nigeria where the two results showed that CO 2 was on the rise,
although the structural breakpoint in 1987 suggested decrease in pollution level.
Another study as a quest into sustainable environment amidst trade intensity and economic
growth in 15 oil-producing developing countries showed that economic growth had positive and
significant effect on environment while trade intensity negatively and significantly affected
environment. Thus, the scale of production from crude oil was a cause for environmental
degradation in the 15 oil-producing developing economies examined. A study on a regional
dimension showed that wastes from global industrial activity and its related final products
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constituted as much as 65% of global wastes and were statistically significant causative agents of
environmental pollution, which could abate with the use of renewable energy. Another study
found regional population and regional industrial output as the major drivers of global
temperature while regional energy policy provided weak evidence on triggering CO 2 emission
and, thus, climate change. On the Sub-Saharan Africa, a study on the causal link among FDI,
pollution, and economic growth established a unidirectional causality running from FDI to GDP
and from CO 2 to FDI. FDI had positive and significant effect on economic growth while
economic growth propelled pollution density.
Dr. S. M. A. Posu is a Senior Lecturer in the Department of Economics, Federal University of
Agriculture, Abeokuta, Ogun State where he was Acting Head, Department of Economics for
four years. Prior to this, he lectured at Olabisi Onabanjo University, Ago-Iwoye; Osun State
University, Osogbo; and Crescent University, Abeokuta. He is both Examiner and Assessor to
some recognised professional examination bodies; including those that have migrated to using
RM Assessor 3 software. He is married and blessed with kids.
a) PhD (Economics) 2014
b) M.Phil. (Economics) 2008
c) M.Sc. (Economics) 1997
d) B.Sc. (Hons) Economics 1991
e) West African School Certificate 1985
i) COLMAS Representative, COLFHEC Board Meeting
i) Nigerian Economic Society 2004 –
Date
ii) Fellow, Chartered Institute of Financial and Investment Analysts, Nigeria 2015 –
Date
Dada, M. A., Posu, S. M. A., and Oguntegbe, A. A. (2018). Effect of Fiscal Policy
Regimes on Economic Growth in Nigeria. Annual Economic Conference with the main
theme Economic Recovery and Sustainable Development: A Multi-Disciplinary
Perspective, held by Department of Economics, Crawford University Igbesa, Ogun State,
Nigeria.
Ekpudu, J. E., Posu, S. M. A., & Olabisi, J. (2015). The Relationship between
Microfinance Bank Loans and Small and Medium Scale Enterprises Performance in
South-West Nigeria. Lupcon Center for Business Research (LCBR) European Marketing
Conference, Libson, Portugal, June 29-30.
Ekpudu, J. E., and Posu, S. M. A. (2015): Quality management strategies by fuel stations
on consumer purchase decision of premium motor spirit in South-West Nigeria. Lupcon
Center for Business Research (LCBR) European Marketing Conference, Libson,
Portugal, June 29-30.
Thesis/Dissertations
Posu, S. M. A. (2014): Economic liberalization, economic growth, and environmental
quality in Nigeria (1970-2012), PhD (Econs) Thesis, Department of Economics,
Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria (No of pages: 317).
Posu, S. M. A. (2008): A sectoral analysis of foreign direct investment in Nigeria, M. Phil.
(Econs) Dissertation, Department of Economics, University of Ibadan, Ibadan, Oyo
State, Nigeria. (No of pages: 135).
Posu, S. M. A. (1997): Analysis of foreign private investment in Nigeria (1970-1993). M.
Sc. (Econs) Thesis, Department of Economics, University of Ibadan, Ibadan, Oyo
State, Nigeria. (No of pages: 93).
Posu, S. M. A. (1991): Evaluation of the Mass Transit Programme – A case study of
Gateway Transit Limited, Abeokuta. B. Sc. (Econs) Thesis, Department of
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Economics, Ogun State University (now Olabisi Onabanjo University), Ago-Iwoye,
Ogun State, Nigeria. (No of pages: 87).
i). Journal Articles
1) Dada, M. A., Posu, S. M. A., Adedeji, A. O., & Abalaba, B. P. (2021). Government Size
and Economic Growth in ECOWAS Sub-Region: A Test of the Non-Monotonic
Hypothesis. Ife Social Sciences Review 29(1), 100-116. www.issr.oauife.edu.ng/journal.
Published by Faculty of Social Sciences, Obafemi Awolowo University, Ile-Ife, Osun
State.
2) Posu, S. M. A., Osinusi, K. B., Osuji, F. I., Adekoya, O. B., & Akinseye, A. B. (2021).
Nexus between Domestic Investment and Manufacturing Productivity in the West
African Monetary Zone. Bells University of Technology Journal of Management
Sciences. 1(1), June, 204-218. Published by College of Management Sciences, Bells
University of Technology, Ota.
3) Dada, M. A., Posu, S. M. A., Adedeji, A. O., Ojo, O. T., & Owoeye, S. D. (2021).
Efficiency of Government Spending in the ECOWAS Sub-Region: Do the Entities Differ
Significantly and Where Lie(s) the Difference? Sokoto Journal of the Social Sciences,
11(1), April, 38-51. Published by Faculty of Social Sciences, Usman Danfodiyo
University, Sokoto.
4) Dada, M. A., Posu, S. M. A., Okungbowa, O. G., & Abalaba, B. P. (2021). The Nexus of
Government Spending, Price, Output, and Money in the ECOWAS Sub-Region:
Evidence from Panel ARDL and Causality Approach. Economics and Business, 35,
71–90. Published by Riga Technical University, Latvia in cooperation with Sciendo.
https://doi.org/10.2478/eb-2021-0005. Indexed in DOAJ, EBSCO, & Google Scholar.
5) Dada, M. A., Posu, S. M. A., Adedeji, A. O., Okungbowa, O. G., & Oguntegbe, A. A.
(2021). The Export-Led Growth Hypothesis and the Resource-Curse Scenario in 14 Oil-
Producing SSA Countries: Evidence from Panel Decomposition Approach. Covenant
Journal of Business and Social Sciences, 12(1), June. Published by Faculty of Business
and Social Sciences, Covenant University, Ota.
6) Adedeji, O. A., Posu, S. M. A., Dada, M. A., & Gabriel, O. O. (2021). Dynamic
Connectedness among Globalization, Infrastructure, and Industrial Sector Productivity in
Nigeria: Journal of Business and Economy, 12(2), 15-40. Published by Department of
Accounting, University of Port Harcourt, Port Harcourt, Rivers State.
7) Dada, M. A., Posu, S. M. A., Okungbowa, O. G., and Oguntegbe, A. A. (2020). Fiscal
policy dynamics and economic growth: Sharing the Nigerian experience. SSRG
International Journal Economics and Management Studies, 8(3) 1-9. Published by
Seventh Sense Research Group, Berlin. doi:10.14445/23939125/IJEMS-V8I3P101.
8) Akinbode, S. O., Posu, S. M. A., & Ojo, O. T. (2019). Do investments in human capital
improve economic growth in Nigeria? Uniosun Journal of Employment Relations and
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Management. 1(2) 30-50. Published by Faculty of Business Administration, Osun State
University, Osogbo.
9) Ojo, O. T., Ekpudu, J. E., Posu, S. M. A., Akinbode, S. O., & Raheem, A. N. (2018). An
Analysis of Image Contents of Billboard Advertisement Messages in Selected
Commercial and residential Areas of Ibadan, Nigeria. Journal of African Contemporary
Research, 9(2) 251-261. Published by Faculty of Business Administration, Imo State
University, Owerri.
10) Ojo, O. T., Ekpudu, J. E., Posu, S. M. A., Akinbode, S. O., & Raheem, A. N. (2018).
Comparative Analysis of Billboard Placement in the Old and Newer Areas of Ibadan-
Nigeria City. UNIPORT Journal of Business, Accounting, and Finance Management.
9(1) 239-248. Published by Department of Accounting, University of Port Harcourt,
Choba, Rivers State.
11) Ojeaga P. I., & Posu, S. M. A. (2017). Industrial activity and environmental pollution: A
panel data analysis. British Journal of Environmental Sciences, 5(6) 1-15. Published by
European Centre for Research, Training and Development, UK. Indexed in DOAJ.
12) Ojeaga P. I., & Posu, S. M. A. (2017). Climate change, industrial activity, and economic
growth: A cross regional analysis. Global Economic Observer, 5(2) 7-17. Published by
Institute for World Economy of the Romanian Economy, and Faculty of Economics and
Business Administration, Nicolar Titulescu University, Bucharest. Indexed in DOAJ.
13) Fapetu, O., Posu, S. M. A., & Oyetayo, O. J. (2017). Testing the Martingale Difference
Hypothesis in the presence of Structural Break in the Nigerian Stock Market. West
African Journal of Business and management Sciences, 6(2), 56-63. Published by
Faculty of Business Administration, Imo State University, Owerri.
14) Dada, M. A., Posu S. M. A., & Eugene S. M. (2017). Modelling Inflation and Economic
Growth in Five ECOWAS Countries: A Bivariate Analysis. International Journal of
Economics Review & Business Research, 4(2), 47-67. Published by Marketing
Profession Association, New Delhi. www.ijebr.com. ISSN: 2395-2237.
15) Ojewumi, J. S., & Posu, S. M. A. (2016): The causal relationship among foreign direct
investment, pollution, and economic growth in Sub-Saharan Africa countries: A panel
data approach. West African Journal of Monetary and Economic Integration, 16(2) 23-
40. Published by West African Monetary Institute, Ghana. Indexed in RePEc, & Publons.
16) Ogege, S., Fapetu, O. & Posu, S. M. A. (2016). Money Market Instruments and the
Growth of the Nigerian Economy, Nigerian Journal of Management Studies, 17(1) 148-
156. Published by Department of Finance, University of Lagos, Akoka.
17) Ogege, S., Posu, S. M. A., & Fapetu, O. (2016). Portfolio Management and the
Performance of Nigerian Banks, Nigerian Journal of Management Studies, 16(1) 112-
121. Published by Department of Finance, University of Lagos, Akoka.
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18) Ekpudu, J. E., Posu, S. M. A., & Olabisi, J. (2015). Microfinance Banks’ Loans and
Small and Medium Scale Enterprises Performance in Ogun State. Lapai International
Journal of Management and Social Sciences, 8(1&2), 212-222. Published by Faculty of
Management and Social Sciences, Ibrahim Badamasi Babangida University, Lapai, Niger
State.
19) Posu, S. M. A., & Ekpudu, J. E. (2015): Pollution-income nexus: Is Nigeria experiencing
economic growth amidst pollutions? Kogi State University Journal of Public
Administration. 4(1) 258-290. Published by Faculty of Management Sciences, Kogi State
University, Anyigba.
20) Posu, S. M. A., Oseni, I. O., & Dauda, R. S. (2015): The shape of Environmental
Kuznets Curve in the analysis of environmental quality. Redeemers’ University Journal
of Management and Social Sciences. 3(1) 75-87. Published by College of Management
Sciences, Redeemers’ University, Ede.
21) Posu, S. M. A., Ojewumi, J. S., & Ojo, O. T. (2015): Foreign direct investment and
openness to trade: Is Nigeria a pollution haven? Journal of Humanities, Social Sciences,
and Creative Arts. 9, 22-44. Published by Federal University of Agriculture, Abeokuta.
22) Oseni, I. O., & Posu, S. M. A. (2015): Monetary policy and private investment in
Nigeria: A multivariate analysis. Kogi State University Journal of Public
Administration. 4(1), 291-328. Published by Faculty of Management Sciences, Kogi
State University, Anyigba.
23) Fabayo, J. A., Posu, S. M. A., and Obisanya, A. A. (2011): Corruption and the
investment climate in Nigeria. Journal of Economics and Sustainable Development,
2(4) 115-128. Published by International Institute for Science, Technology, and
Education, New York.
24) Posu, S. M. A., Soile I. O., Sangosanya, A. O. B., & Amaghionyeodiwe, A. L. (2007):
Foreign direct investment and Nigeria’s economic growth: A sectoral analysis. The
Philippine Review of Economics, 44(2) 173-196. Published by the Philippine Economic
Society [PES] and University of the Philippines School of Economics [UPSE],
Philippines. Indexed in EconLit.
25) Posu, S. M. A. (2007): Measuring the roles of information and communication
technologies on Economic Growth in Nigeria. Journal of Economics and Management
Sciences, 1(2) 57-73. Published by Faculty of Management Sciences, Olabisi Onabanjo
University, Ago-Iwoye.
26) Posu, S. M. A. & Obisanya, A. A. (2007): The impact of international financial
liberalization on economic growth process in Nigeria. Journal of Business
Administration and Management, 2(4) 38-51. Published by Ducan Science Publishing,
Calabar.
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27) Soile, I. O., & Posu, S. M. A. (2001): Interest rates liberalization, savings, investment,
and economic growth process in Nigeria: A test of McKinnon-Shaw Hypothesis,
Knowledge Review, 4(1) 57-66. Published by Department of Geography, University of
Benin, Benin City.
ii). Journal Articles Accepted for Publication
28) Posu, S. M. A., Dada, M. A., Adedeji, A. O., Olubiyi, E. A., & Ojeaga, P. I. (in preess).
Trade Intensity, Environment, and Economic Growth in 15 Oil-Producing Developing
Countries: Is Greenhouse Gas Emission Rising? LASU Journal of Management of
Sciences, 6(2). Published by Faculty of Management Sciences, Lagos State University,
Ojoo. (Letter of Acceptance dated June 21, 2021).
29) Posu, S. M. A., Dada, M. A., Adedeji, O. A., & Abalaba, B. P. (in press). Exploring the
Dynamic Relationships among Government Expenditure, Government Revenue, and
Economic Growth in Nigeria: Do the Variables Cointegrate? LASU Journal of
Management of Sciences, 6(2). Published by Faculty of Management Sciences, Lagos
State University, Ojoo. (Letter of Acceptance dated June 21, 2021).
30) Dada, M. A., Posu, S. M. A., Raheem, A. N., Owoeye, S. D., & Oguntegbe, A. A.
(2021). Commercial Bank Credit Flow and Economic Growth in Nigeria. Ilorin Journal
of Business and Social Sciences, 23(2). Published by Faculty of Business and Social
Sciences, University of Ilorin, Ilorin. (Letter of Acceptance dated May 20, 2021).
31) Adedeji, O. A., Posu, S. M. A., Dada, M. A., & Oloruntola, E. S. (2021). Dynamic Links
among Fiscal Spending Components, Unemployment and Poverty in Nigeria: An
Autoregressive Distributed Lag Approach. UNIOSUN Journal of Management
Sciences. Published by Faculty of Management Sciences, Osun State University, Osogbo.
(Letter of Acceptance dated April 14, 2021).
iii). Books
32) Akingunola, R. A., Omolaja, M. A., Osinubi, I., and Posu, S. M. A. (1998): Introductory
Mathematics for Social and Management Sciences, Ago-Iwoye. Centre for Sandwich
Programmes, Olabisi Onabanjo University, Ago-Iwoye.
iv). Book Article or Chapter
33) . Posu, S. M. A. (1999). Basic Introduction. In Introduction to Macroeconomics, Tella,
S. A., and Ogunmuyiwa, M. S., (Eds.), 2-10, Ago-Iwoye. A Publication of Centre for
Sandwich Programmes, Olabisi Onabanjo University, Ago-Iwoye.
34) . Posu, S. M. A. (1999). Investment and Capital. In Introduction to Macroeconomics
Tella, S. A., and Ogunmuyiwa, M. S., (Eds.), 86-106, Ago-Iwoye. Centre for Sandwich
Programmes, Olabisi Onabanjo University, Ago-Iwoye.
35) . Posu, S. M. A. (1999): Introduction. In Introduction to Microeconomics.
Ogunmuyiwa, M. S., Akintaro, J. A., Posu, S. M. A., and Adesoye, A. B., 1-12, Ago-
10
Iwoye. A Publication of Centre for Sandwich Programmes, Olabisi Onabanjo University,
Ago-Iwoye.
36) . Posu, S. M. A. (1999): The Tools of Economic Analysis. In Introduction to
Microeconomics Ogunmuyiwa, M. S., Akintaro J. A., Posu, S. M. A., and Adesoye, A.
B., 13-29, Ago-Iwoye. A Publication of Centre for Sandwich Programmes, Olabisi
Onabanjo University, Ago-Iwoye.
37) . Posu, S. M. A. (1999): Scarcity, Choice, and Economic Problem. In Introduction to
Microeconomics Ogunmuyiwa. M. S., Akintaro, J. A., Posu, S. M. A., and Adesoye, A.
B., 30-38, Ago-Iwoye. A Publication of Centre for Sandwich Programmes, Olabisi
Onabanjo University, Ago-Iwoye.
38) . Ogunmuyiwa, M. S., and Posu, S. M. A. (1999): Market Structure In Introduction to
Microeconomics Ogunmuyiwa, M. S., Akintaro, J. A., Posu, S. M. A., and Adesoye, A.
B., 168-186, Ago-Iwoye. A Publication of Centre for Sandwich Programmes, Olabisi
Onabanjo University, Ago-Iwoye.
v) Edited Conference Proceeding
39) Posu, S. M. A. (2007). Information and communication technologies in Nigeria.
Proceedings International Conference of Izmir University of Economics on Human
and Economic Resources. Prus, M. J. (Ed.) 327-337. Published by Izmir University of
Economics, Turkey. No: 008, ISBN 078-975-8789-09-2.
40) Posu, S. M. A. (2006). A look at foreign direct investment flows in Nigeria from sectoral
perspective. Proceedings 3 rd African Finance Journal Conference on Research in
Development Finance for Africa. Biekpe, N. B., and Abor, J. (Eds.) 396-409. Published
by University of Ghana, Legon.
41) Sangosanya, A. O. B., & Posu, S. M. A. (2006): Evolving workable policies for the
growth of small and medium scale enterprises (SMEs) in Nigeria – The Radicalization of
Co-Operative Societies. Proceedings 1 st International Conference on Structural
Reforms and Management of Financial Institutions in Nigeria. Somoye, R. O. C., and
Akingunola, R. O. (Eds.) 236-253. Published by Department of Banking and Finance,
Olabisi Onabanjo University, Ago-Iwoye.
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