Areas of Expertise

1. Applied Macroeconomics and Microeconomics: Teaching, research, and applied analysis in both macroeconomic and microeconomic principles.
2. Development Economics: Focus on economic growth, industrialization, policy innovation, and sustainable development in developing countries.
3. Technological and Business Economics: Research on productivity, innovation, firm performance, and technology adoption.
4. Energy and Environmental Economics: Studies on renewable energy, energy efficiency, biomass electricity generation, and low-carbon policies.
5. Financial Economics and Banking: Analysis of fintech, electronic banking adoption, bank performance, and financial development.
6. Statistical Data Analysis and Econometrics: Extensive use of computer software: Stata, SPSS, R, SmartPLS, to analyze data in quantitative methods for empirical research and policy assessment.

Teaching Interests

• ECON 1001. Introduction to the Economy
• ECON 1101. Macroeconomic Principles*
• ECON 1102. Microeconomic Principles*
• ECON 3501. Intermediate Microeconomic Analysis
• ECON 3502. Intermediate Macroeconomic Analysis
• ECON 3503. Introduction to Econometrics
• ECON 3538. Managerial Economics
• ECON 3547. Economics of Development and Growth
• MSOM 3101. Operations Management.
• Organizational Management
• Finance: Financial/Managerial Accounting

* Currently teaching/scheduled to teach.

Research

• Technology Adoption and Diffusion: Investigating how digital devices, platforms, and services spread and influence economic activities, including e-banking adoption.
• Energy Economics and Sustainability: Analyzing renewable energy viability, biomass electricity generation, and low-carbon transitions in developing countries.
• Banking and Financial Sector Performance: Examining efficiency, learning effects, and international expansion strategies in commercial banks.
• Development and Agricultural Economics: Assessing value chains, productivity, and policy interventions in agriculture and rural development.
• Environmental Policy and Green Finance: Exploring the intersection of environmental policy, green finance, and sustainability transitions in industry.
• Applied Econometrics in Economic Policy Analysis: Using quantitative models to evaluate macroeconomic impacts, productivity, and policy interventions.

Representative Publications

1. Aduba, J. J. & Asgari, B. Productivity and technological progress of the Japanese manufacturing industries, 2000–2014: estimation with data envelopment analysis and log-linear learning model. Asia-Pacific Journal of Regional Science. Vol. 4, pp. 343-387, (2020). https://doi.org/10.1007/s41685-019-00131-w New Tab
2. Aduba, J. J. On the determinants, gains, and challenges of electronic banking adoption in Nigeria. International Journal of Social Economics. Vol. 48 (7) pp. 1021-1043, (2021). https://doi.org/10.1108/IJSE-07-2020-0452 New Tab
3. Aduba, J. J. & Asgari, B. Analyzing and forecasting the diffusion of electronic payments system in Nigeria. Technology Analysis, and Strategic Management. Vol. 34, pp. 1215 - 1233, (2021). https://doi.org/10.1080/09537325.2021.1950675 New Tab
4. Aduba, J. J. & Izawa H. Impact of learning through credit and value creation on the efficiency of Japanese commercial banks. Financial Innovations. Vol. 7 (57), (2021). https://doi.org/10.1186/s40854-021-00268-8 New Tab
5. Aduba, J. J. Framework for firm-level performance evaluations using multivariate linear correlation with MCDM methods: application to Japanese firms. Asia-Pacific Journal of Regional Science. Vol. 6, pp. 1 - 44, (2022). https://doi.org/10.1007/s41685-021-00213-8 New Tab
6. Aduba, J. J. & Harimaya, K. Impact of international expansion strategy on the performance of Japanese banks. Japan and the world economy. Vol. 101173, (2023). https://doi.org/10.1016/j.japwor.2022.101173 New Tab
7. Aduba, J. J. Asgari, B. & Izawa, H. Does FinTech penetration drive financial development? Evidence from panel analysis of emerging and developing economies. Borsa Istanbul Review. Vol. 23 (5), pp. 1078 - 1097, (2023). https://doi.org/10.1016/j.bir.2023.06.001 New Tab
8. Aduba, J. J.&Shimada, K. Assessing the Viability of a Sustainable Biomass Electricity Generation in Nigeria: A Feasibility Study. Chemical Engineering Transactions. Vol. 106, pp. 205 - 210, (2023). https://www.cetjournal.it/cet/23/106/035. New Tab
9. Longfor, N. R., Aduba, J. J., Istrate, I. R. & Qiang, X. Mitigating Greenhouse Gas Emissions from Municipal Solid Waste in Sub-Saharan Africa via Sustainable waste management: An Economic Benefit Assessment. Resources, Conservation & Recycling Advances. Vol. 20, 200192, (2023). https://doi.org/10.1016/j.rcradv.2023.200192. New Tab
10. Aduba, J. J., Shimada, K., & Longfor, N. R. Harnessing Biomass Waste-to-Energy for Sustainable Electricity Generation: Prospects, Viability, and Policy Implications for Low-Carbon Urban Development. Clean Technologies and Environmental Policy, Springer. https://link.springer.com/article/10.1007/s10098-024-03039-y.New Tab
11. Aduba, J. J., Asgari, B., Ennajih, Y., & Shimada, K. Impact of Learning on Energy Consumption and Energy Efficiency: Empirical Evidence from Manufacturing Industry. Journal of Cleaner Production. https://doi.org/10.1016/j.jclepro.2025.144843 New Tab
12. Soft or hard lockdown policies? A deep dive analysis of macroeconomic impact of COVID-19 pandemic on the Japanese economy. Social Science and Humanities Open. https://doi.org/10.1016/j.ssaho.2025.101452 New Tab

Education

1. PhD in Economics (March 2021)
   Ritsumeikan University
2. Master in Management (MBA) Sept. 2017
   Ritsumeikan Asia Pacific University
3. B.Sc Statistics
   Abia State University (2008)

Previous Appointments

1. Adjunct Lecturer, University of New South Wale College
2. Adjunct Instructor, University of the People
3. Senior Researcher (Postdoc), Ritsumeikan University

Professional Associations

Western Economic Association (WEAI), Member

Japan Association of Economic Development, Member

American Economic Association, Member (not renewed yet)