Prof. Edward Ebo Onumah

Prof. Edward Ebo Onumah

Head of Department

Contact info eeonumah@ug.edu.gh

About

Profile

Prof. Edward Ebo Onumah is an Associate Professor of Agricultural Economics in the Department of Agricultural Economics and Agribusiness at the University of Ghana. He earned his PhD in Agricultural Economics from Georg-August University of Göttingen in Germany. Prof. Onumah possesses strong analytical and conceptual abilities, with expertise in areas such as Production Economics, Risk Management in Production, Business Economics, Microfinance, Farm Business Management, Project Appraisal, Advanced Mathematical and Quantitative Methods, Food Security, Climate Change, Wellbeing Modelling, and Poverty Analysis. He also has significant expertise in Fisheries and Aquaculture research. In addition to his deep analytical skills, Prof. Onumah is proficient in several computer programs, including SPSS, FRONTIER 4.1, STATA, SHAZAM, and OxMetrics. He has served as a consultant for both local and international organizations. Locally, he has collaborated with institutions like the Soil Research Institute, Technoserve Ghana, the Ministry of Food and Agriculture, and the Ministry of Fisheries and Aquaculture Development. On the international front, he has worked with organizations such as the International Water Management Institute (IWMI), WorldFish, the German Society for International Cooperation (GIZ), USAID, the Institute of Development Studies (IDS) at the University of Sussex, and the Netherlands Organization for Scientific Research (NWO). Since 2013, Prof. Onumah has been a key resource person for Ghana’s Annual Post-Budget Workshop for Members of Parliament on economic matters. He has also published over 72 papers in international journals and conferences.

Education

BSc. MSc. (Agric Econs) (KNUST), PhD (Germany)

Research Interest

My research interest include the following: Productivity and efficiency analysis, agricultural production risk and uncertainty; food security investigation; microfinance and poverty analysis; economics of aquaculture and fisheries investigation; and agricultural trade and market analysis.

Publications

Journal Articles

  1. Ahwireng, A. K., Bavinck, M., Onumah, E. E., Pouw, N., & Nunoo, F. K. (2024). Post‐Harvest Travels of Marine Fish: How Small Fish Food Systems Variously Support Food Security and Nutrition in Coastal and Inland Cities in Ghana. Tijdschrift voor economische en sociale geografie, https://doi.org/10.1111/tesg.12626.
  2. Onumah, E. E, Ketadzo, B., Adaku, A. A., Onumah, J. A., & Addey-Owusu, P. (2024). COVID-19 and Its Impact on the Profit of Mango Value Chain Actors. PLoS ONE 19(4): e0299572. https://doi.org/10.1371/journal.pone.0299572.
  3. Onumah, E. E., Asem, F. E., & Dogbey, M. (2024). Gendered Perception and Factors Influencing the Choice of Innovation in the Fisheries Sector: A Case of Southern Ghana. Ocean and Coastal Management 252 (2024) 107103   
  4. Mensah, A., Adams, F., Nimoh, F., Frempong, F., Onumah, E. E., Nartekie, N. B. (2024). Safeguarding sustainability: Exploring safety practice adherence among urban vegetable farmers in Ghana. J. Agribus. Rural Dev., 1(71), 13–34. http://dx.doi.org/10.17306/J.JARD.2024.01778
  5. Gbordzoe, E. K., Onumah, E. E., & Mensah-Bonsu, A. (2024). Analysis of the Emerging Market for Poultry By-Products in Ghana. Caraka Tani: Journal of Sustainable Agriculture, 39(1), 194-207. http://dx.doi.org/10.20961/carakatani.v39i1.82925  
  6. Onumah, E. E, Mensah, S. A. O., Owusu, P. A., Mensah, A., and Otokunor, P. B. (2023). Value Chain Analysis of the Broiler Industry in the Southern Sector of Ghana. Caraka Tani: Journal of Sustainable Agriculture, 38(2), 371-386. DOI: http://dx.doi.org/10.20961/carakatani.v38i2.74187
  7. Onumah, E. E., Mensah, S. N. O., Owusu, P. A., Mensah, A., & Otokunor, P. B. (2023). Value Chain Analysis of the Broiler Industry in the Southern Sector of Ghana. Caraka Tani: Journal of Sustainable Agriculture, 38(2), 371-386.
  8. Martey, E., Onumah, E. E., Onumah, J. A., & Fiankor, D. D. D. (2023). Non‐tariff measures and household welfare: Evidence from Ghana. Journal of International Development, 1 – 20. DOI:10.1002/jid.3859
  9. Onumah, E. E., Martey, E. and Brümmer, B. (2023). Nontariff measures and production allocation decisions of cereal farmers in Ghana. Agribusiness, 1–24. https://doi.org/10.1002/agr.21845
  10. Onumah, E. E., Makafui Dogbey, M. J., & Elikplim Asem, F. (2023). Impact analysis of innovation and gendered constraints in the fisheries sector of southern Ghana. African Journal of Science, Technology, Innovation and Development, 1-11. https://doi.org/10.1080/20421338.2023.2218772
  11. Onumah, E. E., Al-Hassan, R. M., Ocran, J., & Béné, C. (2023). Analysis of fishers’ wellbeing in the western region of Ghana. Development in Practice, 1-13. DOI: 10.1080/09614524.2023.2185183
  12. Onumah, E. E., Addey Owusu, P., Mensah-Bonsu, A., & Acquah Degraft, H. (2022). Rice price volatility and transmission: implications for food security in Ghana. Cogent Economics & Finance, 10(1), 2085605.
  13. Ninson, J., Egyir, I. S., Mensah-Bonsu, A., & Onumah, E. E. (2022). Financial Analysis of the Use of Land: Agriculture or Woodlot. Land, 11(5), 642.
  14. Gansonré, S., Al‐Hassan, R. M., Ouédraogo, I. M., Kwadzo, G. T., & Onumah, E. E. (2022). Sustainability and Wealth of Rural Households: Measurement and Inequality Analysis. Review of Income and Wealth.
  15. Chakuri, D., Asem, F. E., & Onumah, E. E. (2022). Bayesian technical efficiency analysis of groundnut production in Ghana. Cogent Economics & Finance, 10(1), 2074627.
  16. weneboah, T. K, Onumah, E. E. & Mensah-Bonsu, A. (2022): Technical efficiency of improved and local variety seed maize farms in Ghana: A meta-frontier analysis, Cogent Economics & Finance, 10:1, 2022858, DOI:10.1080/23322039.2021.2022858
  17. Onumah, E. E., Djarbeng, V. N., and Addey, P. O. (2022). Market Integration and Price Transmission Analysis of Processed Fish in Ghana. International Journal of Fisheries and Aquaculture (In the Press).
  18. Mawuli Yevu, & Onumah, E. E. (2021): Profit efficiency of layer production in Ghana, Sustainable Futures, (3), 2021, 100057, https://doi.org/10.1016/j.sftr.2021.100057
  19. Ofori-Appiah, Y., Onumah, E. E. & Asem, F. E. (2021): Efficiency and productivity analysis of pineapple farmers in the Akwapim-South District of Ghana: A distance function approach, African Journal of Science, Technology, Innovation and Development, DOI: 10.1080/20421338.2020.1857544
  20. Onumah, E. E. and Essilfie, F. L. (2020). Regional Analysis of Fish Farms in Ghana: A Stochastic MetaFrontier Approach. Aquaculture Studies, 20(2), 99-111.
  21. Shaibua, M. T., Onumah, E. E., Al-Hassan, R. M., Kuwornu, J. K. M. (2020). Comparative Assessment of Vulnerability of Smallholder Livestock Farmers to Climate Change in North-West Ghana. Local Environment, VOL. 25, NO. 8, 559-575. https://doi.org/10.1080/13549839.2020.1802585
  22. Onumah, E. E., Quaye, E. A. Ahwireng, A. K., Campion, B. B. (2020). Fish Consumption Behaviour and Perception of Food Security of Low-Income Households in Urban Areas of Ghana. Sustainability 2020, 12, 7932; doi:10.3390/su12197932.
  23. Antwi, D. E., and Onumah, E. E. (2020). Agglomeration Externalities, Productivity and Technical Efficiency of Soybean Farms in Ghana. Global Scientific Journals, Volume 8, Issue 1, January 2020, online: ISSN 2320-9186.
  24. Asravor, J., Wiredu, A. N., Siddig, S. K., and Onumah, E. E. (2019). Evaluating the Environmental-Technology Gaps of Rice Farms in Distinct Agro-Ecological Zones of Ghana. Sustainability 2019, 11, 2072; doi:10.3390/su11072072
  25. Tinta., A. A., Sarpong, D. B., Ouedraogo, I. M., Al-Hassan, R. M., Mensah-Bonsu, A., and Onumah, E. E. (2018). The effect of integration, global value chains and international trade on economic growth and food security in ECOWAS., Cogent Food & Agriculture, 4:1, 1465327: https://doi.org/10.1080/23311932.2018.1465327
  26. Onumah, E.E, Onumah, J.A. Onumah, G.E. (2018). Production risk and technical efficiency of fish farms in Ghana. Aquaculture, (495): 55-61.
  27. Tinta, A. A., Sarpong, D. B., Ouedraogo, I. M., Al Hassan, R., Mensah-Bonsu, A., & Onumah, E. E. (2018). Assessing the impact of integration on economic growth and food security in ECOWAS. Theoretical and Practical Research in Economic Fields, 9(1 (17)), 32-44.
  28. Cocou, J. A., Anaman, K. A., Mensah-Bonsu, A., Onumah, E.E., Gero, F.A (2017). Contingent valuation study of the benefits of seasonal climate forecasts for maize farmers in the Republic of Benin, West Africa. Journal of Climate Services, Elservier. http://dx.doi.org/10.1016/j.cliser.2017.06.007
  29. Antwi, D.E, Kuwornu, J.K.M, Onumah, E.E, Bhujel, R.C. (2017). Productivity and constraints analysis of commercial tilapia farms in Ghana. Kasetsart Journal of Social Sciences, (38): 282-290.
  30. Adjimoti, G.O, Kwadzo, G.T, Sarpong, D.B., Onumah, E.E. (2017). Input Policies and Crop Diversification: Evidence from the Collines Region in Benin. African Development Review, Vol. 29, No. 3, 2017, 512–523
  31. Kuwornu, J. K., Narh Jnr, A. B., Egyir, I. S., Onumah, E. E., & Gebrezgabher, S. (2017). Willingness to pay for excreta pellet fertilizer: empirical evidence from Ghana.
  32. Asravo J., Onumah, E. E., Asare, Y. B. (2016). Efficiency of Chili pepper Production in the Volta Region of Ghana. Journal of Agricultural Extension and Rural Development. 8 (12): 45-62
  33. Christophe Béné, Ramatu M. Al-Hassan, Edward Onumah Oscar Amarasinghe, Patrick Fongd, Joseph Ocranh, Rusiata Ratuniata, Truong Van Tuyene, Allister McGregor, David J. Millsf, (2016). Is resilience socially constructed? Empirical evidence from Fiji, Ghana, Sri Lanka, and Vietnam. Global Environmental Change 38: 153-170.
  34. Amewu, S., and Onumah, E. E. (2015). Cost Efficiency of NERICA Producing Households in Ghana: A Modified Non-Neutral Stochastic Frontier Analysis. American Journal of Experimental Agriculture, 9(6): 1-13, ISSN: 2231-0606, SCIENCEDOMAIN international
  35. Acquah, H., D., and Onumah, E. E. (2014). Alternative Approaches to Technical Efficiency Estimation in the Stochastic Frontier Model, Agric Econ - Czech, 2, (6): 3-10.
  36. Oppong, B. A., Onumah, E. E., Asuming-Brempong, S. (2014). Stochastic Frontier Modeling of Maize Production in Brong-Ahafo, Agric Econ - Czech, 2, (6): 67-75.
  37. Senyo-Agyeman, B. A., Asuming-Brempong, S., and Onumah, E. E. (2014). Determinants of Income Diversification of Farm Households in the Western Region of Ghana. Quarterly Journal of International Agriculture 53, (No. 1): 55-72
  38. Onumah, J. A., Williams, P. A., Quaye, W., Akuffobea, M., and Onumah, E. E. (2014). Smallholder Cocoa Farmers Access to on/off-farm Support Services and its Contribution to Output in the Eastern Region of Ghana. Asian Journal of Agriculture and Rural Development, 4 (393-2016-23913), 484-495
  39. Abunyuwah, I., E. E. Onumah, and H. D. Acquah (2013). Modelling non-linear spatial market integration and equilibrium processes in hidden Markov framework. Journal of Economics and Behavioral Studies, Vol. 5, No. 8: 535-545.
  40. Onumah, J. A., E. E. Onumah, R. M. Al-Hassan, and B. Brümmer (2013). Meta-Frontier Analysis of Organic and Conventional Cocoa Production in Ghana. Agric Econ - Czech, 59, 2013 (6): 271–280.
  41. Onumah, J. A., R. M. Al-Hassan and E. E. Onumah (2013). Productivity and Technical Efficiency of Cocoa Production in Eastern Ghana. Journal of Economics and Sustainable Development Vol.4 (No.4): 106-117.
  42. Asiedu, K. F., E. E. Onumah and J. K. M. Kuwornu (2012). Ownership, Governance and Enterprise Efficiency. Business and Economics Journal, Vol. 2012 (BEJ-61): 1-13
  43. Onumah, E. E. and H. D, Acquah (2012). Outreach and Sustainability of Inventory Credit Programme in Ghana. Journal of Agricultural Sciences, Vol. 56 (No. 2): 145-164.
  44. Onumah, E. E. and H. D, Acquah (2011). A Stochastic Production Investigation of Fish Farms in Ghana. Agris on-line Papers in Economics and Informatics, Volume III, No. 2: 55-65.
  45. Acquah, H. D. and E. E. Onumah (2011). Static versus Dynamic Model for Estimating Asymmetric Price Transmission in the Ghanaian Maize Market. African Journal of Agricultural Research, Vol. 6(15): 3456-3460.
  46. Acquah, H. D, and E. E. Onumah (2011). Farmers Perception and Adaptation to Climate Change: An Estimation of Willingness to Pay. Agris on-line Papers in Economics and Informatics, Volume III, No. 4: 31-39.
  47. Onumah, E. E. and H. D, Acquah (2010). Frontier Analysis of Aquaculture Farms in the Southern Sector of Ghana. World Applied Sciences Journal, 9(7): 826-835.
  48. Acquah, H. D, and E. E. Onumah (2010). A comparison of the Different Approaches to Detecting Asymmetry in Retail-Whole Sale Price Transmission. American Eurasian Journal of Scientific Research, 5(1): 60-66, 2010.
  49. Onumah, E. E., B. Brümmer, G. Hörstgen-Schwark (2010). Productivity of Hired and Family Labour and Determinants of Technical Inefficiency in Ghana’s Fish Farms. Agric. Econ. – Czech, 56, 2010 (2): 79–88.
  50. Onumah, E. E., Brümmer, B. and G. Hörstgen-Schwark (2010). Elements Which Delimitate Technical Efficiency of Fish Farms in Ghana. Journal of the World Aquaculture Society, 41(4): 506-518.
  51. Yengoh, G. T., F. A. Armah and E. E. Onumah (2010). Paths to Attaining Food Security: The Case of Cameroon. Challenges 2010, 1, 5-26; doi:10.3390 /challe10100005.
  52. Yengoh, G. T., F. A. Armah, E. E. Onumah, and J. O. Odoi. (2010). Trends in Agriculturally-Relevant Rainfall Characteristics for Small-Scale Agriculture in Northern Ghana. Journal of Agricultural Science, 2 (3): 3-16.
  53. Armah,. F. A., S., D. O. Obiri, G. T. Yawson, E. K. Yengoh, A. Afrifa, J. O. Odoi, E. E. Onumah. (2010). Anthropogenic sources and environmentally relevant concentrations of heavy metals in surface water of a mining district in Ghana: a multivariate statistical approach. Journal of Environmental Science and Health Part A (2010) 45, 1804–1813.

  54. Onumah, E. E., S. Wessels, N. Wildenhayn, B. Brümmer, G. Hörstgen-Schwark (2010). Stocking Density and Photoperiod Manipulation in Relation to Estradiol Profile to Enhance Spawning Activity in Female Nile Tilapia, Turkish Journal of Fisheries and Aquatic Sciences, 10: 463-470 (2010).

    Google Scholar Profile: https://scholar.google.com/citations?hl=en&user=s0LPyS4AAAAJ

Book Chapter

  1. Onumah, E. E., Opoku, A. N, and Onumah, J. A. (2014). Profitability Analysis of Broiler Production in the Greater Accra Region of Ghana. A book chapter in The Developments in Agricultural Economics and Contemporary Issues in Ghana, University of Ghana Readers. DigiBooks, ISBN 9988-1-9900-5.

Technical Reports

  1. Onumah, E. E., Ahwireng, A. K. (2017). Fish for Food Security in City Regions of Ghana and India: An Inter-Regional Innovation Project (Fish4food). National Workshop Report
  2. Onumah, E. E., Ahwireng, A. K. (2016). Fish for Food Security in City Regions of Ghana and India: An Inter-Regional Innovation Project (Fish4food). Inception Workshop Report

Conference Proceedings

  1. Otokunor, P. B., Onumah, E. E., Sarpong, D. B., and Asomanin, K. A. (2023). Determinants of Competitiveness of Irrigated and Rain-Fed Tomato Production Technologies in Ghana. Ghana Association of Agricultural Economics (GAAE) Conference; November 8-11, 2023; University Of Cape Coast (UCC), Cape Coast, Ghana.
  2. Dogbey, M., Asem, F. E, and Onumah, E. E. (2021). Gendered Perception and Factors Influencing the Choice of Innovation in the Fisheries Sector: A Case of Southern Ghana. 17th GLOBELICS International Conference: Innovation systems and Sustainable Development: new strategies for growth, social welfare, and environmental sustainability. 2021. 3rd – 5th November 2021, Heredia, Costa Rica.
  3. Onumah, E.E., Nunoo Francis K. E. (2021). Fish Quality and Safety at Risk: Chemical Adulteration of Fish in Ghana. A conference paper accepted for Oral presentation at The MARE Academic Conference: People and the Sea XI, Limits to Blue Growth in Amsterdam, The Netherlands, 28 June to 2 July 2021.
  4. Onumah, E.E., Campion, B. and Bavinck, M. (2019). Fish Consumption Behaviour and Food Security of Low-Income Households in Urban Areas of Ghana. A conference paper presented at The MARE Academic Conference: People and the Sea X, Geopolitics of the Oceans in Amsterdam, The Netherlands, 24-28 June 2019.
  5. Onumah, E.E., Al-Hassan1, R.M., Ocran, J. Béné, C., McGregor, A. Mills, D. J. (2018). Gender and Social Resilience of Fishers and Fish Processors in the Western Region of Ghana. A conference paper presented at The Nineteenth (19th) Conference of at the International Institute of Fisheries Economics and Trade Conference (IIFET - 2018) on the theme; Adapting to Changing World: Challenges AND Opportunities. This conference will take place between 16th and 20th July 2018 in Seattle, Washington, USA.
  6. Onumah, E.E., Anderson K. A. (2018). Profit Efficiency Analysis of Fish Farmers in Four Regions of Ghana. A conference paper presented at The Nineteenth (19th) Conference of at the International Institute of Fisheries Economics and Trade Conference (IIFET - 2018) on the theme; Adapting to Changing World: Challenges AND Opportunities. This conference will take place between 16th and 20th July 2018 in Seattle, Washington, USA.
  7. Onumah E. E, Essilfie F. L, and Asuming-Brempong, S. (2016). The Effect of Fish Farmers’ Association on Technical Efficiency: An Application of Propensity Score Matching Analysis. A conference paper presented at The Eighteenth (18th) International Conference of the International Institute of Fisheries Economics & Trade (IIFET), Challenging New Frontiers in the Global Seafood Sector – A Northern Enlightenment in Aberdeen Exhibition Conference Centre, Scotland, UK, 11 – 15 July 2016.
  8. Onumah, E. E., Joseph Ocran1, Ramatu M. Al-Hassan1, Christophe Béné, Allister McGregor, David J. Mills (2016). Structural Equation Modelling of Wellbeing: A Case of Fishers in the Western Region of Ghana. A conference paper presented at The Eighteenth (18th) International Conference of the International Institute of Fisheries Economics & Trade (IIFET), Challenging New Frontiers in the Global Seafood Sector – A Northern Enlightenment in Aberdeen Exhibition Conference Centre, Scotland, UK, 11 – 15 July 2016.
  9. Onumah, E. E., Ocran J., Al-Hassan, R., M., Béné, C., McGregor, A., and Mills, D. (2015). Wellbeing Analysis of Fishers and Fish Processors in the Western Region of Ghana. A conference paper presented at The MARE Academic Conference: People and the Sea VIII, Geopolitics of the Oceans in Amsterdam, The Netherlands, 24-26 June 2015.
  10. Ocran J., Onumah, E. E., Al-Hassan, R., M., Béné, C., McGregor, A., and Mills, D. (2015). Gender and Social Resilience in the Fishing Industry: A Case of the Western Region of Ghana. A conference paper presented at The MARE Academic Conference: People and the Sea VIII, Geopolitics of the Oceans in Amsterdam, The Netherlands, 24-26 June 2015.
  11. Onumah, E. E., and Onumah, J. A. (2014). Production Risk and Technical Efficiency of Fish Farms in Ghana. A conference paper presented at The Seventeenth (17th) International Conference of the International Institute of Fisheries Economics & Trade (IIFET), Towards Ecosystem Based Management of Fisheries: What Role can Economics Play in Queensland University of Technology (QUT), Brisbane, Australia, 7 – 11 July 2014.
  12. Onumah, E. E., and Onumah, J. A. (2014). Production Risk and Technical Efficiency of Fish Farms in Ghana. A conference paper presented at The Seventeenth (17th) International Conference of the International Institute of Fisheries Economics & Trade (IIFET), Towards Ecosystem Based Management of Fisheries: What Role can Economics Play in Queensland University of Technology (QUT), Brisbane, Australia, 7 – 11 July 2014.
  13. Otoo, J. T., Onumah, E. E., and Osei–Asare, Y. B. (2014). Technical Efficiency of Artisanal Fisheries in the Southern Sector of Ghana. A conference paper presented at The Seventeenth (17th) International Conference of the International Institute of Fisheries Economics & Trade (IIFET), Towards Ecosystem Based Management of Fisheries: What Role Can Economics Play in Queensland University of Technology (QUT), Brisbane, Australia, 7 – 11 July 2014.
  14. Onumah, E. E. (2012). Meta-Frontier Analysis of Intensive and Semi-Intensive Fish Farms in Ghana. A conference paper presented at the 16th International IIFET, the International Institute of Fisheries Economics & Trade Conference, Visible Possibilities: The Economics of Sustainable Fisheries, Aquaculture and Seafood Trade in Dar es Salaam, Tanzania, July 16-20, 2012.
  15. Asiedu, K., E. E. Onumah, and J. K. M. Kuwornu (2011). Ownership, Governance and Enterprise Efficiency: Evidence from Ghana. 3rd SAICON: International Conference on Management, Business Ethics and Economics (ICMBEE), 28-29 December 2011, Lahore-Pakistan.
  16. Onumah, E. E., B. Brümmer, G. Hörstgen-Schwark (2010). Performance of Fish Farms in Ghana – A Stochastic Frontier Approach. A conference paper presented at the 15th International Conference of IIFET, the International Institute of Fisheries Economics & Trade,Montpellier, France, July 13-16, 2010.
  17. Onumah, E. E., B. Brümmer, G. Hörstgen-Schwark (2008). Technical Efficiency of Fish Farms and Its Potential on Food Security in Ghana. In: African Fishes and Fisheries Diversity and Utilisation. A conference paper presented at the 4th International Conference of Pan African Fish and Fisheries Association (PAFFA), 22-26th September 2008, Ethiopia, pp.198.